Home / 431,267,077.63-646,641,686.51-197,805,341.57

Finding the Fourth Proportional to 431,267,077.63, 646,641,686.51 and 197,805,341.57

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Solution

The fourth proportional to 431,267,077.63, 646,641,686.51 and 197,805,341.57 is: 296,589,251.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,267,077.63 : 646,641,686.51 = 197,805,341.57 : x
  2. Step 2: Convert to fraction form
    431,267,077.63/646,641,686.51 = 197,805,341.57/x
  3. Step 3: Cross multiply
    431,267,077.63x = 646,641,686.51 × 197,805,341.57
  4. Step 4: Simplify right side
    431,267,077.63x = 127,909,179,672,522,384
  5. Step 5: Solve for x
    x = 127,909,179,672,522,384/431,267,077.63
  6. Step 6: Final answer
    x = 296,589,251.32

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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.