Home / 86,851,381.80-130,281,262.64-28,557,769.22

Finding the Fourth Proportional to 86,851,381.80, 130,281,262.64 and 28,557,769.22

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Solution

The fourth proportional to 86,851,381.80, 130,281,262.64 and 28,557,769.22 is: 42,838,031.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,851,381.80 : 130,281,262.64 = 28,557,769.22 : x
  2. Step 2: Convert to fraction form
    86,851,381.80/130,281,262.64 = 28,557,769.22/x
  3. Step 3: Cross multiply
    86,851,381.80x = 130,281,262.64 × 28,557,769.22
  4. Step 4: Simplify right side
    86,851,381.80x = 3,720,542,232,020,539
  5. Step 5: Solve for x
    x = 3,720,542,232,020,539/86,851,381.80
  6. Step 6: Final answer
    x = 42,838,031.53

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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.