Home / 102,988,739.91-142,124,518.48-56,581,983.19

Finding the Fourth Proportional to 102,988,739.91, 142,124,518.48 and 56,581,983.19

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Solution

The fourth proportional to 102,988,739.91, 142,124,518.48 and 56,581,983.19 is: 78,083,168.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,988,739.91 : 142,124,518.48 = 56,581,983.19 : x
  2. Step 2: Convert to fraction form
    102,988,739.91/142,124,518.48 = 56,581,983.19/x
  3. Step 3: Cross multiply
    102,988,739.91x = 142,124,518.48 × 56,581,983.19
  4. Step 4: Simplify right side
    102,988,739.91x = 8,041,687,115,025,438
  5. Step 5: Solve for x
    x = 8,041,687,115,025,438/102,988,739.91
  6. Step 6: Final answer
    x = 78,083,168.34

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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.