Home / 145,000,907.28-200,102,084.28-78,921,248.04

Finding the Fourth Proportional to 145,000,907.28, 200,102,084.28 and 78,921,248.04

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Solution

The fourth proportional to 145,000,907.28, 200,102,084.28 and 78,921,248.04 is: 108,911,775.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,000,907.28 : 200,102,084.28 = 78,921,248.04 : x
  2. Step 2: Convert to fraction form
    145,000,907.28/200,102,084.28 = 78,921,248.04/x
  3. Step 3: Cross multiply
    145,000,907.28x = 200,102,084.28 × 78,921,248.04
  4. Step 4: Simplify right side
    145,000,907.28x = 15,792,306,226,782,866
  5. Step 5: Solve for x
    x = 15,792,306,226,782,866/145,000,907.28
  6. Step 6: Final answer
    x = 108,911,775.26

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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.