Home / 961,308,002.10-1,441,962,003.15-638,191,874.10

Finding the Fourth Proportional to 961,308,002.10, 1,441,962,003.15 and 638,191,874.10

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Solution

The fourth proportional to 961,308,002.10, 1,441,962,003.15 and 638,191,874.10 is: 957,287,811.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,308,002.10 : 1,441,962,003.15 = 638,191,874.10 : x
  2. Step 2: Convert to fraction form
    961,308,002.10/1,441,962,003.15 = 638,191,874.10/x
  3. Step 3: Cross multiply
    961,308,002.10x = 1,441,962,003.15 × 638,191,874.10
  4. Step 4: Simplify right side
    961,308,002.10x = 920,248,433,171,288,704
  5. Step 5: Solve for x
    x = 920,248,433,171,288,704/961,308,002.10
  6. Step 6: Final answer
    x = 957,287,811.15

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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.