Home / 1,229,362,561.61-1,696,525,411.40-664,847,430.96

Finding the Fourth Proportional to 1,229,362,561.61, 1,696,525,411.40 and 664,847,430.96

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Solution

The fourth proportional to 1,229,362,561.61, 1,696,525,411.40 and 664,847,430.96 is: 917,492,200.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,362,561.61 : 1,696,525,411.40 = 664,847,430.96 : x
  2. Step 2: Convert to fraction form
    1,229,362,561.61/1,696,525,411.40 = 664,847,430.96/x
  3. Step 3: Cross multiply
    1,229,362,561.61x = 1,696,525,411.40 × 664,847,430.96
  4. Step 4: Simplify right side
    1,229,362,561.61x = 1,127,930,561,324,322,944
  5. Step 5: Solve for x
    x = 1,127,930,561,324,322,944/1,229,362,561.61
  6. Step 6: Final answer
    x = 917,492,200.06

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Half scale
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Double scale
Find fourth proportional to 1,229,362,562.61, 1,696,525,412.78 and 664,847,431.96
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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.