Home / 153,609,643.20-230,679,885.60-81,946,027.20

Finding the Fourth Proportional to 153,609,643.20, 230,679,885.60 and 81,946,027.20

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Solution

The fourth proportional to 153,609,643.20, 230,679,885.60 and 81,946,027.20 is: 123,060,634.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,609,643.20 : 230,679,885.60 = 81,946,027.20 : x
  2. Step 2: Convert to fraction form
    153,609,643.20/230,679,885.60 = 81,946,027.20/x
  3. Step 3: Cross multiply
    153,609,643.20x = 230,679,885.60 × 81,946,027.20
  4. Step 4: Simplify right side
    153,609,643.20x = 18,903,300,179,870,488
  5. Step 5: Solve for x
    x = 18,903,300,179,870,488/153,609,643.20
  6. Step 6: Final answer
    x = 123,060,634.65

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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.