Home / 20,148,784.47-27,806,066.10-11,448,431.91

Finding the Fourth Proportional to 20,148,784.47, 27,806,066.10 and 11,448,431.91

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Solution

The fourth proportional to 20,148,784.47, 27,806,066.10 and 11,448,431.91 is: 15,799,258.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148,784.47 : 27,806,066.10 = 11,448,431.91 : x
  2. Step 2: Convert to fraction form
    20,148,784.47/27,806,066.10 = 11,448,431.91/x
  3. Step 3: Cross multiply
    20,148,784.47x = 27,806,066.10 × 11,448,431.91
  4. Step 4: Simplify right side
    20,148,784.47x = 318,335,854,430,809.25
  5. Step 5: Solve for x
    x = 318,335,854,430,809.25/20,148,784.47
  6. Step 6: Final answer
    x = 15,799,258.51

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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.