Home / 3,280,249,523.70-4,920,374,285.55-826,586,426.70

Finding the Fourth Proportional to 3,280,249,523.70, 4,920,374,285.55 and 826,586,426.70

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Solution

The fourth proportional to 3,280,249,523.70, 4,920,374,285.55 and 826,586,426.70 is: 1,239,879,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,249,523.70 : 4,920,374,285.55 = 826,586,426.70 : x
  2. Step 2: Convert to fraction form
    3,280,249,523.70/4,920,374,285.55 = 826,586,426.70/x
  3. Step 3: Cross multiply
    3,280,249,523.70x = 4,920,374,285.55 × 826,586,426.70
  4. Step 4: Simplify right side
    3,280,249,523.70x = 4,067,114,598,719,340,544
  5. Step 5: Solve for x
    x = 4,067,114,598,719,340,544/3,280,249,523.70
  6. Step 6: Final answer
    x = 1,239,879,640.05

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Double scale
Find fourth proportional to 3,280,249,524.70, 4,920,374,287.05 and 826,586,427.70
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.