Home / 265,998,808.47-399,036,292.23-81,781,752.74

Finding the Fourth Proportional to 265,998,808.47, 399,036,292.23 and 81,781,752.74

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Solution

The fourth proportional to 265,998,808.47, 399,036,292.23 and 81,781,752.74 is: 122,684,336.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,998,808.47 : 399,036,292.23 = 81,781,752.74 : x
  2. Step 2: Convert to fraction form
    265,998,808.47/399,036,292.23 = 81,781,752.74/x
  3. Step 3: Cross multiply
    265,998,808.47x = 399,036,292.23 × 81,781,752.74
  4. Step 4: Simplify right side
    265,998,808.47x = 32,633,887,383,445,064
  5. Step 5: Solve for x
    x = 32,633,887,383,445,064/265,998,808.47
  6. Step 6: Final answer
    x = 122,684,336.71

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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.