Home / 21,707,819.52-29,956,924.80-11,918,690.88

Finding the Fourth Proportional to 21,707,819.52, 29,956,924.80 and 11,918,690.88

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Solution

The fourth proportional to 21,707,819.52, 29,956,924.80 and 11,918,690.88 is: 16,447,866.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,707,819.52 : 29,956,924.80 = 11,918,690.88 : x
  2. Step 2: Convert to fraction form
    21,707,819.52/29,956,924.80 = 11,918,690.88/x
  3. Step 3: Cross multiply
    21,707,819.52x = 29,956,924.80 × 11,918,690.88
  4. Step 4: Simplify right side
    21,707,819.52x = 357,047,326,406,605.88
  5. Step 5: Solve for x
    x = 357,047,326,406,605.88/21,707,819.52
  6. Step 6: Final answer
    x = 16,447,866.91

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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.