Home / 131,479,817.04-181,500,261.12-78,575,188.32

Finding the Fourth Proportional to 131,479,817.04, 181,500,261.12 and 78,575,188.32

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Solution

The fourth proportional to 131,479,817.04, 181,500,261.12 and 78,575,188.32 is: 108,468,489.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,479,817.04 : 181,500,261.12 = 78,575,188.32 : x
  2. Step 2: Convert to fraction form
    131,479,817.04/181,500,261.12 = 78,575,188.32/x
  3. Step 3: Cross multiply
    131,479,817.04x = 181,500,261.12 × 78,575,188.32
  4. Step 4: Simplify right side
    131,479,817.04x = 14,261,417,197,633,174
  5. Step 5: Solve for x
    x = 14,261,417,197,633,174/131,479,817.04
  6. Step 6: Final answer
    x = 108,468,489.83

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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.