Home / 278,284,407.60-384,042,140.28-154,527,151.44

Finding the Fourth Proportional to 278,284,407.60, 384,042,140.28 and 154,527,151.44

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Solution

The fourth proportional to 278,284,407.60, 384,042,140.28 and 154,527,151.44 is: 213,252,831.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,284,407.60 : 384,042,140.28 = 154,527,151.44 : x
  2. Step 2: Convert to fraction form
    278,284,407.60/384,042,140.28 = 154,527,151.44/x
  3. Step 3: Cross multiply
    278,284,407.60x = 384,042,140.28 × 154,527,151.44
  4. Step 4: Simplify right side
    278,284,407.60x = 59,344,937,970,389,280
  5. Step 5: Solve for x
    x = 59,344,937,970,389,280/278,284,407.60
  6. Step 6: Final answer
    x = 213,252,831.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.