Home / 21,955,668.68-30,288,886.80-13,251,058.76

Finding the Fourth Proportional to 21,955,668.68, 30,288,886.80 and 13,251,058.76

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Solution

The fourth proportional to 21,955,668.68, 30,288,886.80 and 13,251,058.76 is: 18,280,464.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955,668.68 : 30,288,886.80 = 13,251,058.76 : x
  2. Step 2: Convert to fraction form
    21,955,668.68/30,288,886.80 = 13,251,058.76/x
  3. Step 3: Cross multiply
    21,955,668.68x = 30,288,886.80 × 13,251,058.76
  4. Step 4: Simplify right side
    21,955,668.68x = 401,359,818,761,788.38
  5. Step 5: Solve for x
    x = 401,359,818,761,788.38/21,955,668.68
  6. Step 6: Final answer
    x = 18,280,464.36

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1.5x scale

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.