Home / 18,708,957.90-28,087,056.45-10,079,930.70

Finding the Fourth Proportional to 18,708,957.90, 28,087,056.45 and 10,079,930.70

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Solution

The fourth proportional to 18,708,957.90, 28,087,056.45 and 10,079,930.70 is: 15,132,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708,957.90 : 28,087,056.45 = 10,079,930.70 : x
  2. Step 2: Convert to fraction form
    18,708,957.90/28,087,056.45 = 10,079,930.70/x
  3. Step 3: Cross multiply
    18,708,957.90x = 28,087,056.45 × 10,079,930.70
  4. Step 4: Simplify right side
    18,708,957.90x = 283,115,582,582,988
  5. Step 5: Solve for x
    x = 283,115,582,582,988/18,708,957.90
  6. Step 6: Final answer
    x = 15,132,621.72

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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.