Home / 431,077,701.02-647,025,351.33-266,818,588.16

Finding the Fourth Proportional to 431,077,701.02, 647,025,351.33 and 266,818,588.16

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Solution

The fourth proportional to 431,077,701.02, 647,025,351.33 and 266,818,588.16 is: 400,480,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,077,701.02 : 647,025,351.33 = 266,818,588.16 : x
  2. Step 2: Convert to fraction form
    431,077,701.02/647,025,351.33 = 266,818,588.16/x
  3. Step 3: Cross multiply
    431,077,701.02x = 647,025,351.33 × 266,818,588.16
  4. Step 4: Simplify right side
    431,077,701.02x = 172,638,390,745,598,592
  5. Step 5: Solve for x
    x = 172,638,390,745,598,592/431,077,701.02
  6. Step 6: Final answer
    x = 400,480,911.76

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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.