Home / 386,328,049.60-579,492,074.40-127,583,204.80

Finding the Fourth Proportional to 386,328,049.60, 579,492,074.40 and 127,583,204.80

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Solution

The fourth proportional to 386,328,049.60, 579,492,074.40 and 127,583,204.80 is: 191,374,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,328,049.60 : 579,492,074.40 = 127,583,204.80 : x
  2. Step 2: Convert to fraction form
    386,328,049.60/579,492,074.40 = 127,583,204.80/x
  3. Step 3: Cross multiply
    386,328,049.60x = 579,492,074.40 × 127,583,204.80
  4. Step 4: Simplify right side
    386,328,049.60x = 73,933,456,008,152,032
  5. Step 5: Solve for x
    x = 73,933,456,008,152,032/386,328,049.60
  6. Step 6: Final answer
    x = 191,374,807.20

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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.