Home / 156,407,559.04-215,847,381.12-90,326,861.92

Finding the Fourth Proportional to 156,407,559.04, 215,847,381.12 and 90,326,861.92

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Solution

The fourth proportional to 156,407,559.04, 215,847,381.12 and 90,326,861.92 is: 124,653,927.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,407,559.04 : 215,847,381.12 = 90,326,861.92 : x
  2. Step 2: Convert to fraction form
    156,407,559.04/215,847,381.12 = 90,326,861.92/x
  3. Step 3: Cross multiply
    156,407,559.04x = 215,847,381.12 × 90,326,861.92
  4. Step 4: Simplify right side
    156,407,559.04x = 19,496,816,590,219,856
  5. Step 5: Solve for x
    x = 19,496,816,590,219,856/156,407,559.04
  6. Step 6: Final answer
    x = 124,653,927.92

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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.