Home / 143,856,422.70-215,642,916.45-71,084,435.10

Finding the Fourth Proportional to 143,856,422.70, 215,642,916.45 and 71,084,435.10

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Solution

The fourth proportional to 143,856,422.70, 215,642,916.45 and 71,084,435.10 is: 106,556,625.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,856,422.70 : 215,642,916.45 = 71,084,435.10 : x
  2. Step 2: Convert to fraction form
    143,856,422.70/215,642,916.45 = 71,084,435.10/x
  3. Step 3: Cross multiply
    143,856,422.70x = 215,642,916.45 × 71,084,435.10
  4. Step 4: Simplify right side
    143,856,422.70x = 15,328,854,899,164,746
  5. Step 5: Solve for x
    x = 15,328,854,899,164,746/143,856,422.70
  6. Step 6: Final answer
    x = 106,556,625.08

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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.