Home / 42,686,565.40-64,031,619.30-12,394,428.40

Finding the Fourth Proportional to 42,686,565.40, 64,031,619.30 and 12,394,428.40

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Solution

The fourth proportional to 42,686,565.40, 64,031,619.30 and 12,394,428.40 is: 18,592,156.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,686,565.40 : 64,031,619.30 = 12,394,428.40 : x
  2. Step 2: Convert to fraction form
    42,686,565.40/64,031,619.30 = 12,394,428.40/x
  3. Step 3: Cross multiply
    42,686,565.40x = 64,031,619.30 × 12,394,428.40
  4. Step 4: Simplify right side
    42,686,565.40x = 793,635,320,749,908.12
  5. Step 5: Solve for x
    x = 793,635,320,749,908.12/42,686,565.40
  6. Step 6: Final answer
    x = 18,592,156.88

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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.