Home / 805,969,432.40-1,208,954,148.60-295,299,813.20

Finding the Fourth Proportional to 805,969,432.40, 1,208,954,148.60 and 295,299,813.20

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Solution

The fourth proportional to 805,969,432.40, 1,208,954,148.60 and 295,299,813.20 is: 442,949,719.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,969,432.40 : 1,208,954,148.60 = 295,299,813.20 : x
  2. Step 2: Convert to fraction form
    805,969,432.40/1,208,954,148.60 = 295,299,813.20/x
  3. Step 3: Cross multiply
    805,969,432.40x = 1,208,954,148.60 × 295,299,813.20
  4. Step 4: Simplify right side
    805,969,432.40x = 357,003,934,248,945,024
  5. Step 5: Solve for x
    x = 357,003,934,248,945,024/805,969,432.40
  6. Step 6: Final answer
    x = 442,949,719.80

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Double scale
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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.