Home / 136,862,899.75-188,824,301.17-78,083,338.15

Finding the Fourth Proportional to 136,862,899.75, 188,824,301.17 and 78,083,338.15

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Solution

The fourth proportional to 136,862,899.75, 188,824,301.17 and 78,083,338.15 is: 107,728,477.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,862,899.75 : 188,824,301.17 = 78,083,338.15 : x
  2. Step 2: Convert to fraction form
    136,862,899.75/188,824,301.17 = 78,083,338.15/x
  3. Step 3: Cross multiply
    136,862,899.75x = 188,824,301.17 × 78,083,338.15
  4. Step 4: Simplify right side
    136,862,899.75x = 14,744,031,759,194,550
  5. Step 5: Solve for x
    x = 14,744,031,759,194,550/136,862,899.75
  6. Step 6: Final answer
    x = 107,728,477.08

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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.