Home / 81,792,002.40-122,641,347.60-30,675,688.80

Finding the Fourth Proportional to 81,792,002.40, 122,641,347.60 and 30,675,688.80

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Solution

The fourth proportional to 81,792,002.40, 122,641,347.60 and 30,675,688.80 is: 45,996,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,792,002.40 : 122,641,347.60 = 30,675,688.80 : x
  2. Step 2: Convert to fraction form
    81,792,002.40/122,641,347.60 = 30,675,688.80/x
  3. Step 3: Cross multiply
    81,792,002.40x = 122,641,347.60 × 30,675,688.80
  4. Step 4: Simplify right side
    81,792,002.40x = 3,762,107,812,990,227
  5. Step 5: Solve for x
    x = 3,762,107,812,990,227/81,792,002.40
  6. Step 6: Final answer
    x = 45,996,035.10

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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.