Home / 661,609,297.80-992,413,946.70-477,943,288.20

Finding the Fourth Proportional to 661,609,297.80, 992,413,946.70 and 477,943,288.20

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Solution

The fourth proportional to 661,609,297.80, 992,413,946.70 and 477,943,288.20 is: 716,914,932.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,609,297.80 : 992,413,946.70 = 477,943,288.20 : x
  2. Step 2: Convert to fraction form
    661,609,297.80/992,413,946.70 = 477,943,288.20/x
  3. Step 3: Cross multiply
    661,609,297.80x = 992,413,946.70 × 477,943,288.20
  4. Step 4: Simplify right side
    661,609,297.80x = 474,317,584,941,337,536
  5. Step 5: Solve for x
    x = 474,317,584,941,337,536/661,609,297.80
  6. Step 6: Final answer
    x = 716,914,932.30

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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.