Home / 431,115,374.90-646,673,062.35-124,417,493.30

Finding the Fourth Proportional to 431,115,374.90, 646,673,062.35 and 124,417,493.30

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Solution

The fourth proportional to 431,115,374.90, 646,673,062.35 and 124,417,493.30 is: 186,626,239.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,115,374.90 : 646,673,062.35 = 124,417,493.30 : x
  2. Step 2: Convert to fraction form
    431,115,374.90/646,673,062.35 = 124,417,493.30/x
  3. Step 3: Cross multiply
    431,115,374.90x = 646,673,062.35 × 124,417,493.30
  4. Step 4: Simplify right side
    431,115,374.90x = 80,457,441,402,221,616
  5. Step 5: Solve for x
    x = 80,457,441,402,221,616/431,115,374.90
  6. Step 6: Final answer
    x = 186,626,239.95

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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.