Home / 147,520,099.70-221,448,111.15-86,969,942.90

Finding the Fourth Proportional to 147,520,099.70, 221,448,111.15 and 86,969,942.90

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Solution

The fourth proportional to 147,520,099.70, 221,448,111.15 and 86,969,942.90 is: 130,553,935.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,520,099.70 : 221,448,111.15 = 86,969,942.90 : x
  2. Step 2: Convert to fraction form
    147,520,099.70/221,448,111.15 = 86,969,942.90/x
  3. Step 3: Cross multiply
    147,520,099.70x = 221,448,111.15 × 86,969,942.90
  4. Step 4: Simplify right side
    147,520,099.70x = 19,259,329,582,028,356
  5. Step 5: Solve for x
    x = 19,259,329,582,028,356/147,520,099.70
  6. Step 6: Final answer
    x = 130,553,935.51

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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.