Home / 103,587,972.64-142,951,416.24-57,178,238.56

Finding the Fourth Proportional to 103,587,972.64, 142,951,416.24 and 57,178,238.56

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Solution

The fourth proportional to 103,587,972.64, 142,951,416.24 and 57,178,238.56 is: 78,905,976.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,587,972.64 : 142,951,416.24 = 57,178,238.56 : x
  2. Step 2: Convert to fraction form
    103,587,972.64/142,951,416.24 = 57,178,238.56/x
  3. Step 3: Cross multiply
    103,587,972.64x = 142,951,416.24 × 57,178,238.56
  4. Step 4: Simplify right side
    103,587,972.64x = 8,173,710,180,260,579
  5. Step 5: Solve for x
    x = 8,173,710,180,260,579/103,587,972.64
  6. Step 6: Final answer
    x = 78,905,976.94

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Why These Related Problems?

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