Home / 78,059,659.17-107,722,456.28-42,771,856.84

Finding the Fourth Proportional to 78,059,659.17, 107,722,456.28 and 42,771,856.84

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Solution

The fourth proportional to 78,059,659.17, 107,722,456.28 and 42,771,856.84 is: 59,025,231.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,059,659.17 : 107,722,456.28 = 42,771,856.84 : x
  2. Step 2: Convert to fraction form
    78,059,659.17/107,722,456.28 = 42,771,856.84/x
  3. Step 3: Cross multiply
    78,059,659.17x = 107,722,456.28 × 42,771,856.84
  4. Step 4: Simplify right side
    78,059,659.17x = 4,607,489,477,708,848
  5. Step 5: Solve for x
    x = 4,607,489,477,708,848/78,059,659.17
  6. Step 6: Final answer
    x = 59,025,231.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.