Home / 99,816,861.60-149,725,292.40-42,299,344.80

Finding the Fourth Proportional to 99,816,861.60, 149,725,292.40 and 42,299,344.80

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Solution

The fourth proportional to 99,816,861.60, 149,725,292.40 and 42,299,344.80 is: 63,449,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,816,861.60 : 149,725,292.40 = 42,299,344.80 : x
  2. Step 2: Convert to fraction form
    99,816,861.60/149,725,292.40 = 42,299,344.80/x
  3. Step 3: Cross multiply
    99,816,861.60x = 149,725,292.40 × 42,299,344.80
  4. Step 4: Simplify right side
    99,816,861.60x = 6,333,281,768,508,419
  5. Step 5: Solve for x
    x = 6,333,281,768,508,419/99,816,861.60
  6. Step 6: Final answer
    x = 63,449,017.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.