Home / 20,776,503.10-31,164,754.65-9,439,095.10

Finding the Fourth Proportional to 20,776,503.10, 31,164,754.65 and 9,439,095.10

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Solution

The fourth proportional to 20,776,503.10, 31,164,754.65 and 9,439,095.10 is: 14,158,642.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,503.10 : 31,164,754.65 = 9,439,095.10 : x
  2. Step 2: Convert to fraction form
    20,776,503.10/31,164,754.65 = 9,439,095.10/x
  3. Step 3: Cross multiply
    20,776,503.10x = 31,164,754.65 × 9,439,095.10
  4. Step 4: Simplify right side
    20,776,503.10x = 294,167,082,909,517.19
  5. Step 5: Solve for x
    x = 294,167,082,909,517.19/20,776,503.10
  6. Step 6: Final answer
    x = 14,158,642.65

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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.