Home / 70,102,469.28-105,059,709.87-54,559,066.35

Finding the Fourth Proportional to 70,102,469.28, 105,059,709.87 and 54,559,066.35

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Solution

The fourth proportional to 70,102,469.28, 105,059,709.87 and 54,559,066.35 is: 81,765,446.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,102,469.28 : 105,059,709.87 = 54,559,066.35 : x
  2. Step 2: Convert to fraction form
    70,102,469.28/105,059,709.87 = 54,559,066.35/x
  3. Step 3: Cross multiply
    70,102,469.28x = 105,059,709.87 × 54,559,066.35
  4. Step 4: Simplify right side
    70,102,469.28x = 5,731,959,680,983,781
  5. Step 5: Solve for x
    x = 5,731,959,680,983,781/70,102,469.28
  6. Step 6: Final answer
    x = 81,765,446.21

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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.