Home / 21,681,769.65-29,920,884.89-11,892,293.52

Finding the Fourth Proportional to 21,681,769.65, 29,920,884.89 and 11,892,293.52

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Solution

The fourth proportional to 21,681,769.65, 29,920,884.89 and 11,892,293.52 is: 16,411,388.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,681,769.65 : 29,920,884.89 = 11,892,293.52 : x
  2. Step 2: Convert to fraction form
    21,681,769.65/29,920,884.89 = 11,892,293.52/x
  3. Step 3: Cross multiply
    21,681,769.65x = 29,920,884.89 × 11,892,293.52
  4. Step 4: Simplify right side
    21,681,769.65x = 355,827,945,430,551.44
  5. Step 5: Solve for x
    x = 355,827,945,430,551.44/21,681,769.65
  6. Step 6: Final answer
    x = 16,411,388.52

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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.