Home / 431,267,077.13-646,641,685.76-197,805,341.07

Finding the Fourth Proportional to 431,267,077.13, 646,641,685.76 and 197,805,341.07

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Solution

The fourth proportional to 431,267,077.13, 646,641,685.76 and 197,805,341.07 is: 296,589,250.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,267,077.13 : 646,641,685.76 = 197,805,341.07 : x
  2. Step 2: Convert to fraction form
    431,267,077.13/646,641,685.76 = 197,805,341.07/x
  3. Step 3: Cross multiply
    431,267,077.13x = 646,641,685.76 × 197,805,341.07
  4. Step 4: Simplify right side
    431,267,077.13x = 127,909,179,200,847,536
  5. Step 5: Solve for x
    x = 127,909,179,200,847,536/431,267,077.13
  6. Step 6: Final answer
    x = 296,589,250.57

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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.