Home / 14,015,287.90-21,000,296.40-7,931,928.70

Finding the Fourth Proportional to 14,015,287.90, 21,000,296.40 and 7,931,928.70

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Solution

The fourth proportional to 14,015,287.90, 21,000,296.40 and 7,931,928.70 is: 11,885,082.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015,287.90 : 21,000,296.40 = 7,931,928.70 : x
  2. Step 2: Convert to fraction form
    14,015,287.90/21,000,296.40 = 7,931,928.70/x
  3. Step 3: Cross multiply
    14,015,287.90x = 21,000,296.40 × 7,931,928.70
  4. Step 4: Simplify right side
    14,015,287.90x = 166,572,853,723,666.69
  5. Step 5: Solve for x
    x = 166,572,853,723,666.69/14,015,287.90
  6. Step 6: Final answer
    x = 11,885,082.56

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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.