Home / 638,649,619.20-957,694,492.80-293,488,531.20

Finding the Fourth Proportional to 638,649,619.20, 957,694,492.80 and 293,488,531.20

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Solution

The fourth proportional to 638,649,619.20, 957,694,492.80 and 293,488,531.20 is: 440,104,153.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,649,619.20 : 957,694,492.80 = 293,488,531.20 : x
  2. Step 2: Convert to fraction form
    638,649,619.20/957,694,492.80 = 293,488,531.20/x
  3. Step 3: Cross multiply
    638,649,619.20x = 957,694,492.80 × 293,488,531.20
  4. Step 4: Simplify right side
    638,649,619.20x = 281,072,350,030,200,960
  5. Step 5: Solve for x
    x = 281,072,350,030,200,960/638,649,619.20
  6. Step 6: Final answer
    x = 440,104,153.48

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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.