Home / 545,109,781.80-817,664,672.70-217,635,837.60

Finding the Fourth Proportional to 545,109,781.80, 817,664,672.70 and 217,635,837.60

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Solution

The fourth proportional to 545,109,781.80, 817,664,672.70 and 217,635,837.60 is: 326,453,756.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,109,781.80 : 817,664,672.70 = 217,635,837.60 : x
  2. Step 2: Convert to fraction form
    545,109,781.80/817,664,672.70 = 217,635,837.60/x
  3. Step 3: Cross multiply
    545,109,781.80x = 817,664,672.70 × 217,635,837.60
  4. Step 4: Simplify right side
    545,109,781.80x = 177,953,135,918,994,368
  5. Step 5: Solve for x
    x = 177,953,135,918,994,368/545,109,781.80
  6. Step 6: Final answer
    x = 326,453,756.40

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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.