Home / 38,387,995.20-57,581,992.80-12,480,246.45

Finding the Fourth Proportional to 38,387,995.20, 57,581,992.80 and 12,480,246.45

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Solution

The fourth proportional to 38,387,995.20, 57,581,992.80 and 12,480,246.45 is: 18,720,369.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,387,995.20 : 57,581,992.80 = 12,480,246.45 : x
  2. Step 2: Convert to fraction form
    38,387,995.20/57,581,992.80 = 12,480,246.45/x
  3. Step 3: Cross multiply
    38,387,995.20x = 57,581,992.80 × 12,480,246.45
  4. Step 4: Simplify right side
    38,387,995.20x = 718,637,461,226,125.50
  5. Step 5: Solve for x
    x = 718,637,461,226,125.50/38,387,995.20
  6. Step 6: Final answer
    x = 18,720,369.68

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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.