Home / 321,878,368.56-482,889,543.42-117,406,443.78

Finding the Fourth Proportional to 321,878,368.56, 482,889,543.42 and 117,406,443.78

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Solution

The fourth proportional to 321,878,368.56, 482,889,543.42 and 117,406,443.78 is: 176,135,924.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,878,368.56 : 482,889,543.42 = 117,406,443.78 : x
  2. Step 2: Convert to fraction form
    321,878,368.56/482,889,543.42 = 117,406,443.78/x
  3. Step 3: Cross multiply
    321,878,368.56x = 482,889,543.42 × 117,406,443.78
  4. Step 4: Simplify right side
    321,878,368.56x = 56,694,344,031,490,104
  5. Step 5: Solve for x
    x = 56,694,344,031,490,104/321,878,368.56
  6. Step 6: Final answer
    x = 176,135,924.53

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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.