Home / 20,215,501.07-30,326,386.79-8,543,921.64

Finding the Fourth Proportional to 20,215,501.07, 30,326,386.79 and 8,543,921.64

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Solution

The fourth proportional to 20,215,501.07, 30,326,386.79 and 8,543,921.64 is: 12,817,207.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215,501.07 : 30,326,386.79 = 8,543,921.64 : x
  2. Step 2: Convert to fraction form
    20,215,501.07/30,326,386.79 = 8,543,921.64/x
  3. Step 3: Cross multiply
    20,215,501.07x = 30,326,386.79 × 8,543,921.64
  4. Step 4: Simplify right side
    20,215,501.07x = 259,106,272,358,091.16
  5. Step 5: Solve for x
    x = 259,106,272,358,091.16/20,215,501.07
  6. Step 6: Final answer
    x = 12,817,207.52

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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.