Home / 21,312,129.60-31,972,341.60-9,181,569.60

Finding the Fourth Proportional to 21,312,129.60, 31,972,341.60 and 9,181,569.60

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Solution

The fourth proportional to 21,312,129.60, 31,972,341.60 and 9,181,569.60 is: 13,774,141.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312,129.60 : 31,972,341.60 = 9,181,569.60 : x
  2. Step 2: Convert to fraction form
    21,312,129.60/31,972,341.60 = 9,181,569.60/x
  3. Step 3: Cross multiply
    21,312,129.60x = 31,972,341.60 × 9,181,569.60
  4. Step 4: Simplify right side
    21,312,129.60x = 293,556,279,675,375.38
  5. Step 5: Solve for x
    x = 293,556,279,675,375.38/21,312,129.60
  6. Step 6: Final answer
    x = 13,774,141.07

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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.