Home / 90,199,123.20-124,473,450.60-53,033,575.68

Finding the Fourth Proportional to 90,199,123.20, 124,473,450.60 and 53,033,575.68

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Solution

The fourth proportional to 90,199,123.20, 124,473,450.60 and 53,033,575.68 is: 73,185,546.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,199,123.20 : 124,473,450.60 = 53,033,575.68 : x
  2. Step 2: Convert to fraction form
    90,199,123.20/124,473,450.60 = 53,033,575.68/x
  3. Step 3: Cross multiply
    90,199,123.20x = 124,473,450.60 × 53,033,575.68
  4. Step 4: Simplify right side
    90,199,123.20x = 6,601,272,162,545,841
  5. Step 5: Solve for x
    x = 6,601,272,162,545,841/90,199,123.20
  6. Step 6: Final answer
    x = 73,185,546.91

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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.