Home / 109,116,778.93-150,778,127.13-77,700,285.38

Finding the Fourth Proportional to 109,116,778.93, 150,778,127.13 and 77,700,285.38

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Solution

The fourth proportional to 109,116,778.93, 150,778,127.13 and 77,700,285.38 is: 107,366,654.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,116,778.93 : 150,778,127.13 = 77,700,285.38 : x
  2. Step 2: Convert to fraction form
    109,116,778.93/150,778,127.13 = 77,700,285.38/x
  3. Step 3: Cross multiply
    109,116,778.93x = 150,778,127.13 × 77,700,285.38
  4. Step 4: Simplify right side
    109,116,778.93x = 11,715,503,507,148,488
  5. Step 5: Solve for x
    x = 11,715,503,507,148,488/109,116,778.93
  6. Step 6: Final answer
    x = 107,366,654.54

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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.