Home / 7,128,686.71-10,687,387.60-2,579,026.87

Finding the Fourth Proportional to 7,128,686.71, 10,687,387.60 and 2,579,026.87

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Solution

The fourth proportional to 7,128,686.71, 10,687,387.60 and 2,579,026.87 is: 3,866,498.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,686.71 : 10,687,387.60 = 2,579,026.87 : x
  2. Step 2: Convert to fraction form
    7,128,686.71/10,687,387.60 = 2,579,026.87/x
  3. Step 3: Cross multiply
    7,128,686.71x = 10,687,387.60 × 2,579,026.87
  4. Step 4: Simplify right side
    7,128,686.71x = 27,563,059,724,172.74
  5. Step 5: Solve for x
    x = 27,563,059,724,172.74/7,128,686.71
  6. Step 6: Final answer
    x = 3,866,498.96

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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.