Home / 1,267,512,902.32-1,899,927,463.50-426,354,878.10

Finding the Fourth Proportional to 1,267,512,902.32, 1,899,927,463.50 and 426,354,878.10

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Solution

The fourth proportional to 1,267,512,902.32, 1,899,927,463.50 and 426,354,878.10 is: 639,080,943.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,512,902.32 : 1,899,927,463.50 = 426,354,878.10 : x
  2. Step 2: Convert to fraction form
    1,267,512,902.32/1,899,927,463.50 = 426,354,878.10/x
  3. Step 3: Cross multiply
    1,267,512,902.32x = 1,899,927,463.50 × 426,354,878.10
  4. Step 4: Simplify right side
    1,267,512,902.32x = 810,043,342,099,384,704
  5. Step 5: Solve for x
    x = 810,043,342,099,384,704/1,267,512,902.32
  6. Step 6: Final answer
    x = 639,080,943.96

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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.