Home / 20,885,997.19-31,335,411.90-9,970,117.04

Finding the Fourth Proportional to 20,885,997.19, 31,335,411.90 and 9,970,117.04

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Solution

The fourth proportional to 20,885,997.19, 31,335,411.90 and 9,970,117.04 is: 14,958,238.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,997.19 : 31,335,411.90 = 9,970,117.04 : x
  2. Step 2: Convert to fraction form
    20,885,997.19/31,335,411.90 = 9,970,117.04/x
  3. Step 3: Cross multiply
    20,885,997.19x = 31,335,411.90 × 9,970,117.04
  4. Step 4: Simplify right side
    20,885,997.19x = 312,417,724,139,608.75
  5. Step 5: Solve for x
    x = 312,417,724,139,608.75/20,885,997.19
  6. Step 6: Final answer
    x = 14,958,238.35

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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.