Home / 100,840,644.74-139,167,216.32-56,189,580.86

Finding the Fourth Proportional to 100,840,644.74, 139,167,216.32 and 56,189,580.86

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Solution

The fourth proportional to 100,840,644.74, 139,167,216.32 and 56,189,580.86 is: 77,545,592.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,840,644.74 : 139,167,216.32 = 56,189,580.86 : x
  2. Step 2: Convert to fraction form
    100,840,644.74/139,167,216.32 = 56,189,580.86/x
  3. Step 3: Cross multiply
    100,840,644.74x = 139,167,216.32 × 56,189,580.86
  4. Step 4: Simplify right side
    100,840,644.74x = 7,819,747,553,777,915
  5. Step 5: Solve for x
    x = 7,819,747,553,777,915/100,840,644.74
  6. Step 6: Final answer
    x = 77,545,592.60

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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.