Home / 20,883,520.91-31,356,031.68-11,679,526.11

Finding the Fourth Proportional to 20,883,520.91, 31,356,031.68 and 11,679,526.11

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Solution

The fourth proportional to 20,883,520.91, 31,356,031.68 and 11,679,526.11 is: 17,536,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883,520.91 : 31,356,031.68 = 11,679,526.11 : x
  2. Step 2: Convert to fraction form
    20,883,520.91/31,356,031.68 = 11,679,526.11/x
  3. Step 3: Cross multiply
    20,883,520.91x = 31,356,031.68 × 11,679,526.11
  4. Step 4: Simplify right side
    20,883,520.91x = 366,223,590,712,547.12
  5. Step 5: Solve for x
    x = 366,223,590,712,547.12/20,883,520.91
  6. Step 6: Final answer
    x = 17,536,486.90

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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.