Home / 125,213,145.60-187,819,718.40-76,840,204.80

Finding the Fourth Proportional to 125,213,145.60, 187,819,718.40 and 76,840,204.80

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Solution

The fourth proportional to 125,213,145.60, 187,819,718.40 and 76,840,204.80 is: 115,260,307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,213,145.60 : 187,819,718.40 = 76,840,204.80 : x
  2. Step 2: Convert to fraction form
    125,213,145.60/187,819,718.40 = 76,840,204.80/x
  3. Step 3: Cross multiply
    125,213,145.60x = 187,819,718.40 × 76,840,204.80
  4. Step 4: Simplify right side
    125,213,145.60x = 14,432,105,627,334,328
  5. Step 5: Solve for x
    x = 14,432,105,627,334,328/125,213,145.60
  6. Step 6: Final answer
    x = 115,260,307.20

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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.