Home / 72,768,672.30-109,153,008.45-52,255,049.70

Finding the Fourth Proportional to 72,768,672.30, 109,153,008.45 and 52,255,049.70

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Solution

The fourth proportional to 72,768,672.30, 109,153,008.45 and 52,255,049.70 is: 78,382,574.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,768,672.30 : 109,153,008.45 = 52,255,049.70 : x
  2. Step 2: Convert to fraction form
    72,768,672.30/109,153,008.45 = 52,255,049.70/x
  3. Step 3: Cross multiply
    72,768,672.30x = 109,153,008.45 × 52,255,049.70
  4. Step 4: Simplify right side
    72,768,672.30x = 5,703,795,881,459,270
  5. Step 5: Solve for x
    x = 5,703,795,881,459,270/72,768,672.30
  6. Step 6: Final answer
    x = 78,382,574.55

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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.