Home / 142,569,284.61-196,711,891.62-80,689,621.35

Finding the Fourth Proportional to 142,569,284.61, 196,711,891.62 and 80,689,621.35

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Solution

The fourth proportional to 142,569,284.61, 196,711,891.62 and 80,689,621.35 is: 111,332,592.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,569,284.61 : 196,711,891.62 = 80,689,621.35 : x
  2. Step 2: Convert to fraction form
    142,569,284.61/196,711,891.62 = 80,689,621.35/x
  3. Step 3: Cross multiply
    142,569,284.61x = 196,711,891.62 × 80,689,621.35
  4. Step 4: Simplify right side
    142,569,284.61x = 15,872,608,049,860,038
  5. Step 5: Solve for x
    x = 15,872,608,049,860,038/142,569,284.61
  6. Step 6: Final answer
    x = 111,332,592.38

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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.