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Finding the Fourth Proportional to 265,810,277.60, 398,715,416.40 and 188,715,903.20

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Solution

The fourth proportional to 265,810,277.60, 398,715,416.40 and 188,715,903.20 is: 283,073,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,810,277.60 : 398,715,416.40 = 188,715,903.20 : x
  2. Step 2: Convert to fraction form
    265,810,277.60/398,715,416.40 = 188,715,903.20/x
  3. Step 3: Cross multiply
    265,810,277.60x = 398,715,416.40 × 188,715,903.20
  4. Step 4: Simplify right side
    265,810,277.60x = 75,243,939,925,690,080
  5. Step 5: Solve for x
    x = 75,243,939,925,690,080/265,810,277.60
  6. Step 6: Final answer
    x = 283,073,854.80

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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.