Home / 157,993,847.40-236,990,771.10-81,466,343.40

Finding the Fourth Proportional to 157,993,847.40, 236,990,771.10 and 81,466,343.40

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Solution

The fourth proportional to 157,993,847.40, 236,990,771.10 and 81,466,343.40 is: 122,199,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,993,847.40 : 236,990,771.10 = 81,466,343.40 : x
  2. Step 2: Convert to fraction form
    157,993,847.40/236,990,771.10 = 81,466,343.40/x
  3. Step 3: Cross multiply
    157,993,847.40x = 236,990,771.10 × 81,466,343.40
  4. Step 4: Simplify right side
    157,993,847.40x = 19,306,771,541,063,396
  5. Step 5: Solve for x
    x = 19,306,771,541,063,396/157,993,847.40
  6. Step 6: Final answer
    x = 122,199,515.10

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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.