Home / 90,436,382.80-124,749,079.44-56,892,519.52

Finding the Fourth Proportional to 90,436,382.80, 124,749,079.44 and 56,892,519.52

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Solution

The fourth proportional to 90,436,382.80, 124,749,079.44 and 56,892,519.52 is: 78,478,254.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,436,382.80 : 124,749,079.44 = 56,892,519.52 : x
  2. Step 2: Convert to fraction form
    90,436,382.80/124,749,079.44 = 56,892,519.52/x
  3. Step 3: Cross multiply
    90,436,382.80x = 124,749,079.44 × 56,892,519.52
  4. Step 4: Simplify right side
    90,436,382.80x = 7,097,289,437,142,231
  5. Step 5: Solve for x
    x = 7,097,289,437,142,231/90,436,382.80
  6. Step 6: Final answer
    x = 78,478,254.19

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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.