Home / 143,737,354.80-215,606,032.20-86,200,009.20

Finding the Fourth Proportional to 143,737,354.80, 215,606,032.20 and 86,200,009.20

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Solution

The fourth proportional to 143,737,354.80, 215,606,032.20 and 86,200,009.20 is: 129,300,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,737,354.80 : 215,606,032.20 = 86,200,009.20 : x
  2. Step 2: Convert to fraction form
    143,737,354.80/215,606,032.20 = 86,200,009.20/x
  3. Step 3: Cross multiply
    143,737,354.80x = 215,606,032.20 × 86,200,009.20
  4. Step 4: Simplify right side
    143,737,354.80x = 18,585,241,959,215,496
  5. Step 5: Solve for x
    x = 18,585,241,959,215,496/143,737,354.80
  6. Step 6: Final answer
    x = 129,300,013.80

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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.