Home / 20,020,199,340.30-30,030,299,010.45-15,385,466,949.90

Finding the Fourth Proportional to 20,020,199,340.30, 30,030,299,010.45 and 15,385,466,949.90

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Solution

The fourth proportional to 20,020,199,340.30, 30,030,299,010.45 and 15,385,466,949.90 is: 23,078,200,424.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020,199,340.30 : 30,030,299,010.45 = 15,385,466,949.90 : x
  2. Step 2: Convert to fraction form
    20,020,199,340.30/30,030,299,010.45 = 15,385,466,949.90/x
  3. Step 3: Cross multiply
    20,020,199,340.30x = 30,030,299,010.45 × 15,385,466,949.90
  4. Step 4: Simplify right side
    20,020,199,340.30x = 462,030,172,920,893,145,088
  5. Step 5: Solve for x
    x = 462,030,172,920,893,145,088/20,020,199,340.30
  6. Step 6: Final answer
    x = 23,078,200,424.85

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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.