Home / 42,704,005.12-64,042,759.56-15,406,749.28

Finding the Fourth Proportional to 42,704,005.12, 64,042,759.56 and 15,406,749.28

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Solution

The fourth proportional to 42,704,005.12, 64,042,759.56 and 15,406,749.28 is: 23,105,344.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,704,005.12 : 64,042,759.56 = 15,406,749.28 : x
  2. Step 2: Convert to fraction form
    42,704,005.12/64,042,759.56 = 15,406,749.28/x
  3. Step 3: Cross multiply
    42,704,005.12x = 64,042,759.56 × 15,406,749.28
  4. Step 4: Simplify right side
    42,704,005.12x = 986,690,739,740,243.12
  5. Step 5: Solve for x
    x = 986,690,739,740,243.12/42,704,005.12
  6. Step 6: Final answer
    x = 23,105,344.26

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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.