Home / 279,094,585.60-385,158,086.40-155,348,876.80

Finding the Fourth Proportional to 279,094,585.60, 385,158,086.40 and 155,348,876.80

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Solution

The fourth proportional to 279,094,585.60, 385,158,086.40 and 155,348,876.80 is: 214,385,657.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,094,585.60 : 385,158,086.40 = 155,348,876.80 : x
  2. Step 2: Convert to fraction form
    279,094,585.60/385,158,086.40 = 155,348,876.80/x
  3. Step 3: Cross multiply
    279,094,585.60x = 385,158,086.40 × 155,348,876.80
  4. Step 4: Simplify right side
    279,094,585.60x = 59,833,876,112,677,360
  5. Step 5: Solve for x
    x = 59,833,876,112,677,360/279,094,585.60
  6. Step 6: Final answer
    x = 214,385,657.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.