Home / 400,528,963.20-600,861,277.20-138,142,271.28

Finding the Fourth Proportional to 400,528,963.20, 600,861,277.20 and 138,142,271.28

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Solution

The fourth proportional to 400,528,963.20, 600,861,277.20 and 138,142,271.28 is: 207,236,802.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,528,963.20 : 600,861,277.20 = 138,142,271.28 : x
  2. Step 2: Convert to fraction form
    400,528,963.20/600,861,277.20 = 138,142,271.28/x
  3. Step 3: Cross multiply
    400,528,963.20x = 600,861,277.20 × 138,142,271.28
  4. Step 4: Simplify right side
    400,528,963.20x = 83,004,341,556,609,680
  5. Step 5: Solve for x
    x = 83,004,341,556,609,680/400,528,963.20
  6. Step 6: Final answer
    x = 207,236,802.29

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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.