Home / 121,789,207.70-182,683,811.55-57,219,126.20

Finding the Fourth Proportional to 121,789,207.70, 182,683,811.55 and 57,219,126.20

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Solution

The fourth proportional to 121,789,207.70, 182,683,811.55 and 57,219,126.20 is: 85,828,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,789,207.70 : 182,683,811.55 = 57,219,126.20 : x
  2. Step 2: Convert to fraction form
    121,789,207.70/182,683,811.55 = 57,219,126.20/x
  3. Step 3: Cross multiply
    121,789,207.70x = 182,683,811.55 × 57,219,126.20
  4. Step 4: Simplify right side
    121,789,207.70x = 10,453,008,067,776,468
  5. Step 5: Solve for x
    x = 10,453,008,067,776,468/121,789,207.70
  6. Step 6: Final answer
    x = 85,828,689.30

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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.