Home / 14,387,516.80-21,581,275.20-13,211,785.60

Finding the Fourth Proportional to 14,387,516.80, 21,581,275.20 and 13,211,785.60

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Solution

The fourth proportional to 14,387,516.80, 21,581,275.20 and 13,211,785.60 is: 19,817,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,387,516.80 : 21,581,275.20 = 13,211,785.60 : x
  2. Step 2: Convert to fraction form
    14,387,516.80/21,581,275.20 = 13,211,785.60/x
  3. Step 3: Cross multiply
    14,387,516.80x = 21,581,275.20 × 13,211,785.60
  4. Step 4: Simplify right side
    14,387,516.80x = 285,127,180,916,997.12
  5. Step 5: Solve for x
    x = 285,127,180,916,997.12/14,387,516.80
  6. Step 6: Final answer
    x = 19,817,678.40

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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.