Home / 91,328,957.20-136,993,433.15-42,130,254.19

Finding the Fourth Proportional to 91,328,957.20, 136,993,433.15 and 42,130,254.19

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Solution

The fourth proportional to 91,328,957.20, 136,993,433.15 and 42,130,254.19 is: 63,195,380.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,328,957.20 : 136,993,433.15 = 42,130,254.19 : x
  2. Step 2: Convert to fraction form
    91,328,957.20/136,993,433.15 = 42,130,254.19/x
  3. Step 3: Cross multiply
    91,328,957.20x = 136,993,433.15 × 42,130,254.19
  4. Step 4: Simplify right side
    91,328,957.20x = 5,771,568,161,755,161
  5. Step 5: Solve for x
    x = 5,771,568,161,755,161/91,328,957.20
  6. Step 6: Final answer
    x = 63,195,380.07

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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.