Home / 527,638,581.80-790,650,774.90-282,030,171.20

Finding the Fourth Proportional to 527,638,581.80, 790,650,774.90 and 282,030,171.20

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Solution

The fourth proportional to 527,638,581.80, 790,650,774.90 and 282,030,171.20 is: 422,613,851.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,638,581.80 : 790,650,774.90 = 282,030,171.20 : x
  2. Step 2: Convert to fraction form
    527,638,581.80/790,650,774.90 = 282,030,171.20/x
  3. Step 3: Cross multiply
    527,638,581.80x = 790,650,774.90 × 282,030,171.20
  4. Step 4: Simplify right side
    527,638,581.80x = 222,987,373,400,506,400
  5. Step 5: Solve for x
    x = 222,987,373,400,506,400/527,638,581.80
  6. Step 6: Final answer
    x = 422,613,851.78

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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.