Home / 10,393,979.40-15,573,254.40-8,870,515.20

Finding the Fourth Proportional to 10,393,979.40, 15,573,254.40 and 8,870,515.20

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Solution

The fourth proportional to 10,393,979.40, 15,573,254.40 and 8,870,515.20 is: 13,290,654.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,393,979.40 : 15,573,254.40 = 8,870,515.20 : x
  2. Step 2: Convert to fraction form
    10,393,979.40/15,573,254.40 = 8,870,515.20/x
  3. Step 3: Cross multiply
    10,393,979.40x = 15,573,254.40 × 8,870,515.20
  4. Step 4: Simplify right side
    10,393,979.40x = 138,142,789,868,666.88
  5. Step 5: Solve for x
    x = 138,142,789,868,666.88/10,393,979.40
  6. Step 6: Final answer
    x = 13,290,654.58

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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.