Home / 661,740,103.80-992,610,155.70-317,366,335.80

Finding the Fourth Proportional to 661,740,103.80, 992,610,155.70 and 317,366,335.80

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Solution

The fourth proportional to 661,740,103.80, 992,610,155.70 and 317,366,335.80 is: 476,049,503.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,740,103.80 : 992,610,155.70 = 317,366,335.80 : x
  2. Step 2: Convert to fraction form
    661,740,103.80/992,610,155.70 = 317,366,335.80/x
  3. Step 3: Cross multiply
    661,740,103.80x = 992,610,155.70 × 317,366,335.80
  4. Step 4: Simplify right side
    661,740,103.80x = 315,021,047,992,376,512
  5. Step 5: Solve for x
    x = 315,021,047,992,376,512/661,740,103.80
  6. Step 6: Final answer
    x = 476,049,503.70

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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.