Home / 106,812,005.80-160,218,008.70-99,645,644.20

Finding the Fourth Proportional to 106,812,005.80, 160,218,008.70 and 99,645,644.20

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Solution

The fourth proportional to 106,812,005.80, 160,218,008.70 and 99,645,644.20 is: 149,468,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,812,005.80 : 160,218,008.70 = 99,645,644.20 : x
  2. Step 2: Convert to fraction form
    106,812,005.80/160,218,008.70 = 99,645,644.20/x
  3. Step 3: Cross multiply
    106,812,005.80x = 160,218,008.70 × 99,645,644.20
  4. Step 4: Simplify right side
    106,812,005.80x = 15,965,026,689,352,704
  5. Step 5: Solve for x
    x = 15,965,026,689,352,704/106,812,005.80
  6. Step 6: Final answer
    x = 149,468,466.30

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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.