Home / 153,609,679.20-230,679,939.60-81,946,063.20

Finding the Fourth Proportional to 153,609,679.20, 230,679,939.60 and 81,946,063.20

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Solution

The fourth proportional to 153,609,679.20, 230,679,939.60 and 81,946,063.20 is: 123,060,688.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,609,679.20 : 230,679,939.60 = 81,946,063.20 : x
  2. Step 2: Convert to fraction form
    153,609,679.20/230,679,939.60 = 81,946,063.20/x
  3. Step 3: Cross multiply
    153,609,679.20x = 230,679,939.60 × 81,946,063.20
  4. Step 4: Simplify right side
    153,609,679.20x = 18,903,312,909,433,784
  5. Step 5: Solve for x
    x = 18,903,312,909,433,784/153,609,679.20
  6. Step 6: Final answer
    x = 123,060,688.67

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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.