Home / 802,019,921.60-1,203,029,882.40-526,520,907.20

Finding the Fourth Proportional to 802,019,921.60, 1,203,029,882.40 and 526,520,907.20

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Solution

The fourth proportional to 802,019,921.60, 1,203,029,882.40 and 526,520,907.20 is: 789,781,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,019,921.60 : 1,203,029,882.40 = 526,520,907.20 : x
  2. Step 2: Convert to fraction form
    802,019,921.60/1,203,029,882.40 = 526,520,907.20/x
  3. Step 3: Cross multiply
    802,019,921.60x = 1,203,029,882.40 × 526,520,907.20
  4. Step 4: Simplify right side
    802,019,921.60x = 633,420,385,069,957,376
  5. Step 5: Solve for x
    x = 633,420,385,069,957,376/802,019,921.60
  6. Step 6: Final answer
    x = 789,781,360.80

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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.