Home / 386,328,225.60-579,492,338.40-127,583,380.80

Finding the Fourth Proportional to 386,328,225.60, 579,492,338.40 and 127,583,380.80

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Solution

The fourth proportional to 386,328,225.60, 579,492,338.40 and 127,583,380.80 is: 191,375,071.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,328,225.60 : 579,492,338.40 = 127,583,380.80 : x
  2. Step 2: Convert to fraction form
    386,328,225.60/579,492,338.40 = 127,583,380.80/x
  3. Step 3: Cross multiply
    386,328,225.60x = 579,492,338.40 × 127,583,380.80
  4. Step 4: Simplify right side
    386,328,225.60x = 73,933,591,680,769,664
  5. Step 5: Solve for x
    x = 73,933,591,680,769,664/386,328,225.60
  6. Step 6: Final answer
    x = 191,375,071.20

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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.