Home / 99,844,168.40-149,766,252.60-72,421,812.80

Finding the Fourth Proportional to 99,844,168.40, 149,766,252.60 and 72,421,812.80

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Solution

The fourth proportional to 99,844,168.40, 149,766,252.60 and 72,421,812.80 is: 108,632,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,844,168.40 : 149,766,252.60 = 72,421,812.80 : x
  2. Step 2: Convert to fraction form
    99,844,168.40/149,766,252.60 = 72,421,812.80/x
  3. Step 3: Cross multiply
    99,844,168.40x = 149,766,252.60 × 72,421,812.80
  4. Step 4: Simplify right side
    99,844,168.40x = 10,846,343,509,554,712
  5. Step 5: Solve for x
    x = 10,846,343,509,554,712/99,844,168.40
  6. Step 6: Final answer
    x = 108,632,719.20

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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.