Home / 661,609,338.30-992,414,007.45-477,943,328.70

Finding the Fourth Proportional to 661,609,338.30, 992,414,007.45 and 477,943,328.70

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Solution

The fourth proportional to 661,609,338.30, 992,414,007.45 and 477,943,328.70 is: 716,914,993.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,609,338.30 : 992,414,007.45 = 477,943,328.70 : x
  2. Step 2: Convert to fraction form
    661,609,338.30/992,414,007.45 = 477,943,328.70/x
  3. Step 3: Cross multiply
    661,609,338.30x = 992,414,007.45 × 477,943,328.70
  4. Step 4: Simplify right side
    661,609,338.30x = 474,317,654,169,159,616
  5. Step 5: Solve for x
    x = 474,317,654,169,159,616/661,609,338.30
  6. Step 6: Final answer
    x = 716,914,993.05

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Double scale
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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.