Home / 137,387,071.20-206,080,606.80-83,639,359.20

Finding the Fourth Proportional to 137,387,071.20, 206,080,606.80 and 83,639,359.20

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Solution

The fourth proportional to 137,387,071.20, 206,080,606.80 and 83,639,359.20 is: 125,459,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,387,071.20 : 206,080,606.80 = 83,639,359.20 : x
  2. Step 2: Convert to fraction form
    137,387,071.20/206,080,606.80 = 83,639,359.20/x
  3. Step 3: Cross multiply
    137,387,071.20x = 206,080,606.80 × 83,639,359.20
  4. Step 4: Simplify right side
    137,387,071.20x = 17,236,449,896,299,164
  5. Step 5: Solve for x
    x = 17,236,449,896,299,164/137,387,071.20
  6. Step 6: Final answer
    x = 125,459,038.80

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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.