Home / 400,528,956.12-600,861,266.75-138,142,264.25

Finding the Fourth Proportional to 400,528,956.12, 600,861,266.75 and 138,142,264.25

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Solution

The fourth proportional to 400,528,956.12, 600,861,266.75 and 138,142,264.25 is: 207,236,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,528,956.12 : 600,861,266.75 = 138,142,264.25 : x
  2. Step 2: Convert to fraction form
    400,528,956.12/600,861,266.75 = 138,142,264.25/x
  3. Step 3: Cross multiply
    400,528,956.12x = 600,861,266.75 × 138,142,264.25
  4. Step 4: Simplify right side
    400,528,956.12x = 83,004,335,888,968,240
  5. Step 5: Solve for x
    x = 83,004,335,888,968,240/400,528,956.12
  6. Step 6: Final answer
    x = 207,236,791.80

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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.