Home / 86,043,424.20-129,065,136.30-77,540,368.20

Finding the Fourth Proportional to 86,043,424.20, 129,065,136.30 and 77,540,368.20

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Solution

The fourth proportional to 86,043,424.20, 129,065,136.30 and 77,540,368.20 is: 116,310,552.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,043,424.20 : 129,065,136.30 = 77,540,368.20 : x
  2. Step 2: Convert to fraction form
    86,043,424.20/129,065,136.30 = 77,540,368.20/x
  3. Step 3: Cross multiply
    86,043,424.20x = 129,065,136.30 × 77,540,368.20
  4. Step 4: Simplify right side
    86,043,424.20x = 10,007,758,190,485,186
  5. Step 5: Solve for x
    x = 10,007,758,190,485,186/86,043,424.20
  6. Step 6: Final answer
    x = 116,310,552.30

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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.