Home / 13,640,001.76-18,821,862.30-7,528,036.60

Finding the Fourth Proportional to 13,640,001.76, 18,821,862.30 and 7,528,036.60

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Solution

The fourth proportional to 13,640,001.76, 18,821,862.30 and 7,528,036.60 is: 10,387,950.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640,001.76 : 18,821,862.30 = 7,528,036.60 : x
  2. Step 2: Convert to fraction form
    13,640,001.76/18,821,862.30 = 7,528,036.60/x
  3. Step 3: Cross multiply
    13,640,001.76x = 18,821,862.30 × 7,528,036.60
  4. Step 4: Simplify right side
    13,640,001.76x = 141,691,668,274,560.19
  5. Step 5: Solve for x
    x = 141,691,668,274,560.19/13,640,001.76
  6. Step 6: Final answer
    x = 10,387,950.88

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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.