Home / 56,137,376.91-84,206,016.12-21,129,031.80

Finding the Fourth Proportional to 56,137,376.91, 84,206,016.12 and 21,129,031.80

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Solution

The fourth proportional to 56,137,376.91, 84,206,016.12 and 21,129,031.80 is: 31,693,529.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,137,376.91 : 84,206,016.12 = 21,129,031.80 : x
  2. Step 2: Convert to fraction form
    56,137,376.91/84,206,016.12 = 21,129,031.80/x
  3. Step 3: Cross multiply
    56,137,376.91x = 84,206,016.12 × 21,129,031.80
  4. Step 4: Simplify right side
    56,137,376.91x = 1,779,191,592,350,792.75
  5. Step 5: Solve for x
    x = 1,779,191,592,350,792.75/56,137,376.91
  6. Step 6: Final answer
    x = 31,693,529.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.