Home / 1,229,362,568.37-1,696,525,420.71-664,847,437.71

Finding the Fourth Proportional to 1,229,362,568.37, 1,696,525,420.71 and 664,847,437.71

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Solution

The fourth proportional to 1,229,362,568.37, 1,696,525,420.71 and 664,847,437.71 is: 917,492,209.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,362,568.37 : 1,696,525,420.71 = 664,847,437.71 : x
  2. Step 2: Convert to fraction form
    1,229,362,568.37/1,696,525,420.71 = 664,847,437.71/x
  3. Step 3: Cross multiply
    1,229,362,568.37x = 1,696,525,420.71 × 664,847,437.71
  4. Step 4: Simplify right side
    1,229,362,568.37x = 1,127,930,578,968,923,392
  5. Step 5: Solve for x
    x = 1,127,930,578,968,923,392/1,229,362,568.37
  6. Step 6: Final answer
    x = 917,492,209.37

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Half scale
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Double scale
Find fourth proportional to 1,229,362,569.37, 1,696,525,422.09 and 664,847,438.71
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.