Home / 14,120,320.64-19,485,428.28-7,840,456.88

Finding the Fourth Proportional to 14,120,320.64, 19,485,428.28 and 7,840,456.88

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Solution

The fourth proportional to 14,120,320.64, 19,485,428.28 and 7,840,456.88 is: 10,819,489.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120,320.64 : 19,485,428.28 = 7,840,456.88 : x
  2. Step 2: Convert to fraction form
    14,120,320.64/19,485,428.28 = 7,840,456.88/x
  3. Step 3: Cross multiply
    14,120,320.64x = 19,485,428.28 × 7,840,456.88
  4. Step 4: Simplify right side
    14,120,320.64x = 152,774,660,217,672.56
  5. Step 5: Solve for x
    x = 152,774,660,217,672.56/14,120,320.64
  6. Step 6: Final answer
    x = 10,819,489.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.