Home / 12,861,973.47-19,278,283.55-5,180,701.71

Finding the Fourth Proportional to 12,861,973.47, 19,278,283.55 and 5,180,701.71

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Solution

The fourth proportional to 12,861,973.47, 19,278,283.55 and 5,180,701.71 is: 7,765,140.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861,973.47 : 19,278,283.55 = 5,180,701.71 : x
  2. Step 2: Convert to fraction form
    12,861,973.47/19,278,283.55 = 5,180,701.71/x
  3. Step 3: Cross multiply
    12,861,973.47x = 19,278,283.55 × 5,180,701.71
  4. Step 4: Simplify right side
    12,861,973.47x = 99,875,036,527,446.38
  5. Step 5: Solve for x
    x = 99,875,036,527,446.38/12,861,973.47
  6. Step 6: Final answer
    x = 7,765,140.92

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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.