Home / 106,956,139.80-160,434,209.70-99,728,542.20

Finding the Fourth Proportional to 106,956,139.80, 160,434,209.70 and 99,728,542.20

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Solution

The fourth proportional to 106,956,139.80, 160,434,209.70 and 99,728,542.20 is: 149,592,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,956,139.80 : 160,434,209.70 = 99,728,542.20 : x
  2. Step 2: Convert to fraction form
    106,956,139.80/160,434,209.70 = 99,728,542.20/x
  3. Step 3: Cross multiply
    106,956,139.80x = 160,434,209.70 × 99,728,542.20
  4. Step 4: Simplify right side
    106,956,139.80x = 15,999,869,852,390,098
  5. Step 5: Solve for x
    x = 15,999,869,852,390,098/106,956,139.80
  6. Step 6: Final answer
    x = 149,592,813.30

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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.