Home / 157,993,781.40-236,990,672.10-81,466,277.40

Finding the Fourth Proportional to 157,993,781.40, 236,990,672.10 and 81,466,277.40

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Solution

The fourth proportional to 157,993,781.40, 236,990,672.10 and 81,466,277.40 is: 122,199,416.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,993,781.40 : 236,990,672.10 = 81,466,277.40 : x
  2. Step 2: Convert to fraction form
    157,993,781.40/236,990,672.10 = 81,466,277.40/x
  3. Step 3: Cross multiply
    157,993,781.40x = 236,990,672.10 × 81,466,277.40
  4. Step 4: Simplify right side
    157,993,781.40x = 19,306,747,834,511,040
  5. Step 5: Solve for x
    x = 19,306,747,834,511,040/157,993,781.40
  6. Step 6: Final answer
    x = 122,199,416.10

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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.