Home / 186,551,169.78-279,862,621.05-71,526,740.70

Finding the Fourth Proportional to 186,551,169.78, 279,862,621.05 and 71,526,740.70

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Solution

The fourth proportional to 186,551,169.78, 279,862,621.05 and 71,526,740.70 is: 107,303,862.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,551,169.78 : 279,862,621.05 = 71,526,740.70 : x
  2. Step 2: Convert to fraction form
    186,551,169.78/279,862,621.05 = 71,526,740.70/x
  3. Step 3: Cross multiply
    186,551,169.78x = 279,862,621.05 × 71,526,740.70
  4. Step 4: Simplify right side
    186,551,169.78x = 20,017,661,127,465,712
  5. Step 5: Solve for x
    x = 20,017,661,127,465,712/186,551,169.78
  6. Step 6: Final answer
    x = 107,303,862.80

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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.