Home / 885,723,318.30-1,328,584,977.45-425,550,524.70

Finding the Fourth Proportional to 885,723,318.30, 1,328,584,977.45 and 425,550,524.70

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Solution

The fourth proportional to 885,723,318.30, 1,328,584,977.45 and 425,550,524.70 is: 638,325,787.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,723,318.30 : 1,328,584,977.45 = 425,550,524.70 : x
  2. Step 2: Convert to fraction form
    885,723,318.30/1,328,584,977.45 = 425,550,524.70/x
  3. Step 3: Cross multiply
    885,723,318.30x = 1,328,584,977.45 × 425,550,524.70
  4. Step 4: Simplify right side
    885,723,318.30x = 565,380,034,262,385,152
  5. Step 5: Solve for x
    x = 565,380,034,262,385,152/885,723,318.30
  6. Step 6: Final answer
    x = 638,325,787.05

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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.