Home / 91,404,728.40-126,138,511.50-52,247,345.91

Finding the Fourth Proportional to 91,404,728.40, 126,138,511.50 and 52,247,345.91

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Solution

The fourth proportional to 91,404,728.40, 126,138,511.50 and 52,247,345.91 is: 72,101,329.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,404,728.40 : 126,138,511.50 = 52,247,345.91 : x
  2. Step 2: Convert to fraction form
    91,404,728.40/126,138,511.50 = 52,247,345.91/x
  3. Step 3: Cross multiply
    91,404,728.40x = 126,138,511.50 × 52,247,345.91
  4. Step 4: Simplify right side
    91,404,728.40x = 6,590,402,442,913,013
  5. Step 5: Solve for x
    x = 6,590,402,442,913,013/91,404,728.40
  6. Step 6: Final answer
    x = 72,101,329.53

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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.