Home / 1,229,362,568.10-1,696,525,420.36-664,847,437.46

Finding the Fourth Proportional to 1,229,362,568.10, 1,696,525,420.36 and 664,847,437.46

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Solution

The fourth proportional to 1,229,362,568.10, 1,696,525,420.36 and 664,847,437.46 is: 917,492,209.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,362,568.10 : 1,696,525,420.36 = 664,847,437.46 : x
  2. Step 2: Convert to fraction form
    1,229,362,568.10/1,696,525,420.36 = 664,847,437.46/x
  3. Step 3: Cross multiply
    1,229,362,568.10x = 1,696,525,420.36 × 664,847,437.46
  4. Step 4: Simplify right side
    1,229,362,568.10x = 1,127,930,578,312,095,360
  5. Step 5: Solve for x
    x = 1,127,930,578,312,095,360/1,229,362,568.10
  6. Step 6: Final answer
    x = 917,492,209.04

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Double scale
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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.