Home / 20,722,068.40-31,083,102.60-19,394,964.40

Finding the Fourth Proportional to 20,722,068.40, 31,083,102.60 and 19,394,964.40

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Solution

The fourth proportional to 20,722,068.40, 31,083,102.60 and 19,394,964.40 is: 29,092,446.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722,068.40 : 31,083,102.60 = 19,394,964.40 : x
  2. Step 2: Convert to fraction form
    20,722,068.40/31,083,102.60 = 19,394,964.40/x
  3. Step 3: Cross multiply
    20,722,068.40x = 31,083,102.60 × 19,394,964.40
  4. Step 4: Simplify right side
    20,722,068.40x = 602,855,668,368,547.38
  5. Step 5: Solve for x
    x = 602,855,668,368,547.38/20,722,068.40
  6. Step 6: Final answer
    x = 29,092,446.60

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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.