Home / 1,260,780,994.80-1,891,171,492.20-442,893,295.80

Finding the Fourth Proportional to 1,260,780,994.80, 1,891,171,492.20 and 442,893,295.80

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Solution

The fourth proportional to 1,260,780,994.80, 1,891,171,492.20 and 442,893,295.80 is: 664,339,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,780,994.80 : 1,891,171,492.20 = 442,893,295.80 : x
  2. Step 2: Convert to fraction form
    1,260,780,994.80/1,891,171,492.20 = 442,893,295.80/x
  3. Step 3: Cross multiply
    1,260,780,994.80x = 1,891,171,492.20 × 442,893,295.80
  4. Step 4: Simplify right side
    1,260,780,994.80x = 837,587,175,103,462,016
  5. Step 5: Solve for x
    x = 837,587,175,103,462,016/1,260,780,994.80
  6. Step 6: Final answer
    x = 664,339,943.70

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Double scale
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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.