Home / 13,479,908.60-20,219,862.90-7,740,345.80

Finding the Fourth Proportional to 13,479,908.60, 20,219,862.90 and 7,740,345.80

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Solution

The fourth proportional to 13,479,908.60, 20,219,862.90 and 7,740,345.80 is: 11,610,518.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,908.60 : 20,219,862.90 = 7,740,345.80 : x
  2. Step 2: Convert to fraction form
    13,479,908.60/20,219,862.90 = 7,740,345.80/x
  3. Step 3: Cross multiply
    13,479,908.60x = 20,219,862.90 × 7,740,345.80
  4. Step 4: Simplify right side
    13,479,908.60x = 156,508,730,874,590.81
  5. Step 5: Solve for x
    x = 156,508,730,874,590.81/13,479,908.60
  6. Step 6: Final answer
    x = 11,610,518.70

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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.