Home / 1,208,013,046.80-1,812,019,570.20-772,656,579.60

Finding the Fourth Proportional to 1,208,013,046.80, 1,812,019,570.20 and 772,656,579.60

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Solution

The fourth proportional to 1,208,013,046.80, 1,812,019,570.20 and 772,656,579.60 is: 1,158,984,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,013,046.80 : 1,812,019,570.20 = 772,656,579.60 : x
  2. Step 2: Convert to fraction form
    1,208,013,046.80/1,812,019,570.20 = 772,656,579.60/x
  3. Step 3: Cross multiply
    1,208,013,046.80x = 1,812,019,570.20 × 772,656,579.60
  4. Step 4: Simplify right side
    1,208,013,046.80x = 1,400,068,843,278,994,176
  5. Step 5: Solve for x
    x = 1,400,068,843,278,994,176/1,208,013,046.80
  6. Step 6: Final answer
    x = 1,158,984,869.40

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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.