Home / 804,834,490.80-1,207,251,736.20-287,281,815.60

Finding the Fourth Proportional to 804,834,490.80, 1,207,251,736.20 and 287,281,815.60

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Solution

The fourth proportional to 804,834,490.80, 1,207,251,736.20 and 287,281,815.60 is: 430,922,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,834,490.80 : 1,207,251,736.20 = 287,281,815.60 : x
  2. Step 2: Convert to fraction form
    804,834,490.80/1,207,251,736.20 = 287,281,815.60/x
  3. Step 3: Cross multiply
    804,834,490.80x = 1,207,251,736.20 × 287,281,815.60
  4. Step 4: Simplify right side
    804,834,490.80x = 346,821,470,661,788,288
  5. Step 5: Solve for x
    x = 346,821,470,661,788,288/804,834,490.80
  6. Step 6: Final answer
    x = 430,922,723.40

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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.