Home / 660,871,221.80-992,070,533.10-354,761,205.80

Finding the Fourth Proportional to 660,871,221.80, 992,070,533.10 and 354,761,205.80

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Solution

The fourth proportional to 660,871,221.80, 992,070,533.10 and 354,761,205.80 is: 532,551,769.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,871,221.80 : 992,070,533.10 = 354,761,205.80 : x
  2. Step 2: Convert to fraction form
    660,871,221.80/992,070,533.10 = 354,761,205.80/x
  3. Step 3: Cross multiply
    660,871,221.80x = 992,070,533.10 × 354,761,205.80
  4. Step 4: Simplify right side
    660,871,221.80x = 351,948,138,561,204,864
  5. Step 5: Solve for x
    x = 351,948,138,561,204,864/660,871,221.80
  6. Step 6: Final answer
    x = 532,551,769.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.