Home / 8,538,945.20-12,808,407.80-2,781,669.62

Finding the Fourth Proportional to 8,538,945.20, 12,808,407.80 and 2,781,669.62

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Solution

The fourth proportional to 8,538,945.20, 12,808,407.80 and 2,781,669.62 is: 4,172,501.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538,945.20 : 12,808,407.80 = 2,781,669.62 : x
  2. Step 2: Convert to fraction form
    8,538,945.20/12,808,407.80 = 2,781,669.62/x
  3. Step 3: Cross multiply
    8,538,945.20x = 12,808,407.80 × 2,781,669.62
  4. Step 4: Simplify right side
    8,538,945.20x = 35,628,758,838,084.34
  5. Step 5: Solve for x
    x = 35,628,758,838,084.34/8,538,945.20
  6. Step 6: Final answer
    x = 4,172,501.17

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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.