Home / 363,406,520.20-545,109,780.30-145,090,557.40

Finding the Fourth Proportional to 363,406,520.20, 545,109,780.30 and 145,090,557.40

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Solution

The fourth proportional to 363,406,520.20, 545,109,780.30 and 145,090,557.40 is: 217,635,836.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,406,520.20 : 545,109,780.30 = 145,090,557.40 : x
  2. Step 2: Convert to fraction form
    363,406,520.20/545,109,780.30 = 145,090,557.40/x
  3. Step 3: Cross multiply
    363,406,520.20x = 545,109,780.30 × 145,090,557.40
  4. Step 4: Simplify right side
    363,406,520.20x = 79,090,281,867,918,528
  5. Step 5: Solve for x
    x = 79,090,281,867,918,528/363,406,520.20
  6. Step 6: Final answer
    x = 217,635,836.10

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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.