Home / 145,060,753.70-200,181,962.35-78,980,494.03

Finding the Fourth Proportional to 145,060,753.70, 200,181,962.35 and 78,980,494.03

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Solution

The fourth proportional to 145,060,753.70, 200,181,962.35 and 78,980,494.03 is: 108,992,059.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,060,753.70 : 200,181,962.35 = 78,980,494.03 : x
  2. Step 2: Convert to fraction form
    145,060,753.70/200,181,962.35 = 78,980,494.03/x
  3. Step 3: Cross multiply
    145,060,753.70x = 200,181,962.35 × 78,980,494.03
  4. Step 4: Simplify right side
    145,060,753.70x = 15,810,470,281,451,472
  5. Step 5: Solve for x
    x = 15,810,470,281,451,472/145,060,753.70
  6. Step 6: Final answer
    x = 108,992,059.38

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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.