Home / 386,328,052.60-579,492,078.90-127,583,207.80

Finding the Fourth Proportional to 386,328,052.60, 579,492,078.90 and 127,583,207.80

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Solution

The fourth proportional to 386,328,052.60, 579,492,078.90 and 127,583,207.80 is: 191,374,811.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,328,052.60 : 579,492,078.90 = 127,583,207.80 : x
  2. Step 2: Convert to fraction form
    386,328,052.60/579,492,078.90 = 127,583,207.80/x
  3. Step 3: Cross multiply
    386,328,052.60x = 579,492,078.90 × 127,583,207.80
  4. Step 4: Simplify right side
    386,328,052.60x = 73,933,458,320,752,688
  5. Step 5: Solve for x
    x = 73,933,458,320,752,688/386,328,052.60
  6. Step 6: Final answer
    x = 191,374,811.70

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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.