Home / 400,528,988.10-600,861,314.67-138,142,296.22

Finding the Fourth Proportional to 400,528,988.10, 600,861,314.67 and 138,142,296.22

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Solution

The fourth proportional to 400,528,988.10, 600,861,314.67 and 138,142,296.22 is: 207,236,839.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,528,988.10 : 600,861,314.67 = 138,142,296.22 : x
  2. Step 2: Convert to fraction form
    400,528,988.10/600,861,314.67 = 138,142,296.22/x
  3. Step 3: Cross multiply
    400,528,988.10x = 600,861,314.67 × 138,142,296.22
  4. Step 4: Simplify right side
    400,528,988.10x = 83,004,361,718,281,760
  5. Step 5: Solve for x
    x = 83,004,361,718,281,760/400,528,988.10
  6. Step 6: Final answer
    x = 207,236,839.74

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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.