Home / 20,817,654.65-31,207,934.47-9,881,097.09

Finding the Fourth Proportional to 20,817,654.65, 31,207,934.47 and 9,881,097.09

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Solution

The fourth proportional to 20,817,654.65, 31,207,934.47 and 9,881,097.09 is: 14,812,842.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,817,654.65 : 31,207,934.47 = 9,881,097.09 : x
  2. Step 2: Convert to fraction form
    20,817,654.65/31,207,934.47 = 9,881,097.09/x
  3. Step 3: Cross multiply
    20,817,654.65x = 31,207,934.47 × 9,881,097.09
  4. Step 4: Simplify right side
    20,817,654.65x = 308,368,630,476,427.69
  5. Step 5: Solve for x
    x = 308,368,630,476,427.69/20,817,654.65
  6. Step 6: Final answer
    x = 14,812,842.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.