Home / 415,599,982.30-623,496,988.80-120,501,274.78

Finding the Fourth Proportional to 415,599,982.30, 623,496,988.80 and 120,501,274.78

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Solution

The fourth proportional to 415,599,982.30, 623,496,988.80 and 120,501,274.78 is: 180,780,041.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,599,982.30 : 623,496,988.80 = 120,501,274.78 : x
  2. Step 2: Convert to fraction form
    415,599,982.30/623,496,988.80 = 120,501,274.78/x
  3. Step 3: Cross multiply
    415,599,982.30x = 623,496,988.80 × 120,501,274.78
  4. Step 4: Simplify right side
    415,599,982.30x = 75,132,181,971,891,376
  5. Step 5: Solve for x
    x = 75,132,181,971,891,376/415,599,982.30
  6. Step 6: Final answer
    x = 180,780,041.32

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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.