Home / 122,481,002.40-183,721,503.60-81,666,333.60

Finding the Fourth Proportional to 122,481,002.40, 183,721,503.60 and 81,666,333.60

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Solution

The fourth proportional to 122,481,002.40, 183,721,503.60 and 81,666,333.60 is: 122,499,500.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,481,002.40 : 183,721,503.60 = 81,666,333.60 : x
  2. Step 2: Convert to fraction form
    122,481,002.40/183,721,503.60 = 81,666,333.60/x
  3. Step 3: Cross multiply
    122,481,002.40x = 183,721,503.60 × 81,666,333.60
  4. Step 4: Simplify right side
    122,481,002.40x = 15,003,861,602,491,200
  5. Step 5: Solve for x
    x = 15,003,861,602,491,200/122,481,002.40
  6. Step 6: Final answer
    x = 122,499,500.40

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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.