Home / 91,381,146.60-126,098,486.59-50,128,038.98

Finding the Fourth Proportional to 91,381,146.60, 126,098,486.59 and 50,128,038.98

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Solution

The fourth proportional to 91,381,146.60, 126,098,486.59 and 50,128,038.98 is: 69,172,581.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,381,146.60 : 126,098,486.59 = 50,128,038.98 : x
  2. Step 2: Convert to fraction form
    91,381,146.60/126,098,486.59 = 50,128,038.98/x
  3. Step 3: Cross multiply
    91,381,146.60x = 126,098,486.59 × 50,128,038.98
  4. Step 4: Simplify right side
    91,381,146.60x = 6,321,069,850,913,323
  5. Step 5: Solve for x
    x = 6,321,069,850,913,323/91,381,146.60
  6. Step 6: Final answer
    x = 69,172,581.94

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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.