Home / 19,879,077.40-29,818,616.10-8,520,674.20

Finding the Fourth Proportional to 19,879,077.40, 29,818,616.10 and 8,520,674.20

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Solution

The fourth proportional to 19,879,077.40, 29,818,616.10 and 8,520,674.20 is: 12,781,011.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879,077.40 : 29,818,616.10 = 8,520,674.20 : x
  2. Step 2: Convert to fraction form
    19,879,077.40/29,818,616.10 = 8,520,674.20/x
  3. Step 3: Cross multiply
    19,879,077.40x = 29,818,616.10 × 8,520,674.20
  4. Step 4: Simplify right side
    19,879,077.40x = 254,074,712,882,974.62
  5. Step 5: Solve for x
    x = 254,074,712,882,974.62/19,879,077.40
  6. Step 6: Final answer
    x = 12,781,011.30

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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.