Home / 153,609,659.20-230,679,909.60-81,946,043.20

Finding the Fourth Proportional to 153,609,659.20, 230,679,909.60 and 81,946,043.20

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Solution

The fourth proportional to 153,609,659.20, 230,679,909.60 and 81,946,043.20 is: 123,060,658.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,609,659.20 : 230,679,909.60 = 81,946,043.20 : x
  2. Step 2: Convert to fraction form
    153,609,659.20/230,679,909.60 = 81,946,043.20/x
  3. Step 3: Cross multiply
    153,609,659.20x = 230,679,909.60 × 81,946,043.20
  4. Step 4: Simplify right side
    153,609,659.20x = 18,903,305,837,453,696
  5. Step 5: Solve for x
    x = 18,903,305,837,453,696/153,609,659.20
  6. Step 6: Final answer
    x = 123,060,658.66

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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.