Home / 149,338,139.40-206,085,896.23-86,626,920.42

Finding the Fourth Proportional to 149,338,139.40, 206,085,896.23 and 86,626,920.42

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Solution

The fourth proportional to 149,338,139.40, 206,085,896.23 and 86,626,920.42 is: 119,544,723.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,338,139.40 : 206,085,896.23 = 86,626,920.42 : x
  2. Step 2: Convert to fraction form
    149,338,139.40/206,085,896.23 = 86,626,920.42/x
  3. Step 3: Cross multiply
    149,338,139.40x = 206,085,896.23 × 86,626,920.42
  4. Step 4: Simplify right side
    149,338,139.40x = 17,852,586,532,699,234
  5. Step 5: Solve for x
    x = 17,852,586,532,699,234/149,338,139.40
  6. Step 6: Final answer
    x = 119,544,723.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.