Home / 86,851,379.88-130,281,259.76-28,557,767.28

Finding the Fourth Proportional to 86,851,379.88, 130,281,259.76 and 28,557,767.28

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Solution

The fourth proportional to 86,851,379.88, 130,281,259.76 and 28,557,767.28 is: 42,838,028.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,851,379.88 : 130,281,259.76 = 28,557,767.28 : x
  2. Step 2: Convert to fraction form
    86,851,379.88/130,281,259.76 = 28,557,767.28/x
  3. Step 3: Cross multiply
    86,851,379.88x = 130,281,259.76 × 28,557,767.28
  4. Step 4: Simplify right side
    86,851,379.88x = 3,720,541,897,171,309
  5. Step 5: Solve for x
    x = 3,720,541,897,171,309/86,851,379.88
  6. Step 6: Final answer
    x = 42,838,028.62

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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.