Home / 90,169,123.68-124,422,892.96-50,478,827.84

Finding the Fourth Proportional to 90,169,123.68, 124,422,892.96 and 50,478,827.84

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Solution

The fourth proportional to 90,169,123.68, 124,422,892.96 and 50,478,827.84 is: 69,654,905.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,169,123.68 : 124,422,892.96 = 50,478,827.84 : x
  2. Step 2: Convert to fraction form
    90,169,123.68/124,422,892.96 = 50,478,827.84/x
  3. Step 3: Cross multiply
    90,169,123.68x = 124,422,892.96 × 50,478,827.84
  4. Step 4: Simplify right side
    90,169,123.68x = 6,280,721,793,082,588
  5. Step 5: Solve for x
    x = 6,280,721,793,082,588/90,169,123.68
  6. Step 6: Final answer
    x = 69,654,905.55

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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.