Home / 255,280,998.70-382,921,498.05-253,367,811.10

Finding the Fourth Proportional to 255,280,998.70, 382,921,498.05 and 253,367,811.10

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Solution

The fourth proportional to 255,280,998.70, 382,921,498.05 and 253,367,811.10 is: 380,051,716.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,280,998.70 : 382,921,498.05 = 253,367,811.10 : x
  2. Step 2: Convert to fraction form
    255,280,998.70/382,921,498.05 = 253,367,811.10/x
  3. Step 3: Cross multiply
    255,280,998.70x = 382,921,498.05 × 253,367,811.10
  4. Step 4: Simplify right side
    255,280,998.70x = 97,019,981,784,061,424
  5. Step 5: Solve for x
    x = 97,019,981,784,061,424/255,280,998.70
  6. Step 6: Final answer
    x = 380,051,716.65

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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.