Home / 638,260,321.32-880,936,191.84-403,161,451.74

Finding the Fourth Proportional to 638,260,321.32, 880,936,191.84 and 403,161,451.74

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Solution

The fourth proportional to 638,260,321.32, 880,936,191.84 and 403,161,451.74 is: 556,449,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,260,321.32 : 880,936,191.84 = 403,161,451.74 : x
  2. Step 2: Convert to fraction form
    638,260,321.32/880,936,191.84 = 403,161,451.74/x
  3. Step 3: Cross multiply
    638,260,321.32x = 880,936,191.84 × 403,161,451.74
  4. Step 4: Simplify right side
    638,260,321.32x = 355,159,513,992,521,536
  5. Step 5: Solve for x
    x = 355,159,513,992,521,536/638,260,321.32
  6. Step 6: Final answer
    x = 556,449,307.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.