Home / 86,851,376.87-130,281,255.27-28,557,764.28

Finding the Fourth Proportional to 86,851,376.87, 130,281,255.27 and 28,557,764.28

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Solution

The fourth proportional to 86,851,376.87, 130,281,255.27 and 28,557,764.28 is: 42,838,024.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,851,376.87 : 130,281,255.27 = 28,557,764.28 : x
  2. Step 2: Convert to fraction form
    86,851,376.87/130,281,255.27 = 28,557,764.28/x
  3. Step 3: Cross multiply
    86,851,376.87x = 130,281,255.27 × 28,557,764.28
  4. Step 4: Simplify right side
    86,851,376.87x = 3,720,541,378,103,168
  5. Step 5: Solve for x
    x = 3,720,541,378,103,168/86,851,376.87
  6. Step 6: Final answer
    x = 42,838,024.13

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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.