Home / 19,165,890.60-28,748,835.90-12,755,356.20

Finding the Fourth Proportional to 19,165,890.60, 28,748,835.90 and 12,755,356.20

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Solution

The fourth proportional to 19,165,890.60, 28,748,835.90 and 12,755,356.20 is: 19,133,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,165,890.60 : 28,748,835.90 = 12,755,356.20 : x
  2. Step 2: Convert to fraction form
    19,165,890.60/28,748,835.90 = 12,755,356.20/x
  3. Step 3: Cross multiply
    19,165,890.60x = 28,748,835.90 × 12,755,356.20
  4. Step 4: Simplify right side
    19,165,890.60x = 366,701,642,239,847.56
  5. Step 5: Solve for x
    x = 366,701,642,239,847.56/19,165,890.60
  6. Step 6: Final answer
    x = 19,133,034.30

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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.