Home / 1,033,146,821.10-1,549,720,231.65-420,170,961.90

Finding the Fourth Proportional to 1,033,146,821.10, 1,549,720,231.65 and 420,170,961.90

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Solution

The fourth proportional to 1,033,146,821.10, 1,549,720,231.65 and 420,170,961.90 is: 630,256,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033,146,821.10 : 1,549,720,231.65 = 420,170,961.90 : x
  2. Step 2: Convert to fraction form
    1,033,146,821.10/1,549,720,231.65 = 420,170,961.90/x
  3. Step 3: Cross multiply
    1,033,146,821.10x = 1,549,720,231.65 × 420,170,961.90
  4. Step 4: Simplify right side
    1,033,146,821.10x = 651,147,440,408,271,360
  5. Step 5: Solve for x
    x = 651,147,440,408,271,360/1,033,146,821.10
  6. Step 6: Final answer
    x = 630,256,442.85

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Double scale
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Similar ratio
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1.5x scale

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.