Home / 143,653,525.80-215,480,288.70-86,257,897.80

Finding the Fourth Proportional to 143,653,525.80, 215,480,288.70 and 86,257,897.80

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Solution

The fourth proportional to 143,653,525.80, 215,480,288.70 and 86,257,897.80 is: 129,386,846.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,653,525.80 : 215,480,288.70 = 86,257,897.80 : x
  2. Step 2: Convert to fraction form
    143,653,525.80/215,480,288.70 = 86,257,897.80/x
  3. Step 3: Cross multiply
    143,653,525.80x = 215,480,288.70 × 86,257,897.80
  4. Step 4: Simplify right side
    143,653,525.80x = 18,586,876,720,599,092
  5. Step 5: Solve for x
    x = 18,586,876,720,599,092/143,653,525.80
  6. Step 6: Final answer
    x = 129,386,846.70

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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.