Home / 15,778,537.59-21,772,723.10-9,161,832.65

Finding the Fourth Proportional to 15,778,537.59, 21,772,723.10 and 9,161,832.65

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Solution

The fourth proportional to 15,778,537.59, 21,772,723.10 and 9,161,832.65 is: 12,642,365.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,778,537.59 : 21,772,723.10 = 9,161,832.65 : x
  2. Step 2: Convert to fraction form
    15,778,537.59/21,772,723.10 = 9,161,832.65/x
  3. Step 3: Cross multiply
    15,778,537.59x = 21,772,723.10 × 9,161,832.65
  4. Step 4: Simplify right side
    15,778,537.59x = 199,478,045,376,989.25
  5. Step 5: Solve for x
    x = 199,478,045,376,989.25/15,778,537.59
  6. Step 6: Final answer
    x = 12,642,365.89

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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.