Home / 142,607,068-196,800,138.48-77,416,972

Finding the Fourth Proportional to 142,607,068, 196,800,138.48 and 77,416,972

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Solution

The fourth proportional to 142,607,068, 196,800,138.48 and 77,416,972 is: 106,836,715.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,607,068 : 196,800,138.48 = 77,416,972 : x
  2. Step 2: Convert to fraction form
    142,607,068/196,800,138.48 = 77,416,972/x
  3. Step 3: Cross multiply
    142,607,068x = 196,800,138.48 × 77,416,972
  4. Step 4: Simplify right side
    142,607,068x = 15,235,670,810,302,282
  5. Step 5: Solve for x
    x = 15,235,670,810,302,282/142,607,068
  6. Step 6: Final answer
    x = 106,836,715.91

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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.