Home / 8,320,713.60-12,481,070.40-7,816,828.80

Finding the Fourth Proportional to 8,320,713.60, 12,481,070.40 and 7,816,828.80

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Solution

The fourth proportional to 8,320,713.60, 12,481,070.40 and 7,816,828.80 is: 11,725,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320,713.60 : 12,481,070.40 = 7,816,828.80 : x
  2. Step 2: Convert to fraction form
    8,320,713.60/12,481,070.40 = 7,816,828.80/x
  3. Step 3: Cross multiply
    8,320,713.60x = 12,481,070.40 × 7,816,828.80
  4. Step 4: Simplify right side
    8,320,713.60x = 97,562,390,557,547.52
  5. Step 5: Solve for x
    x = 97,562,390,557,547.52/8,320,713.60
  6. Step 6: Final answer
    x = 11,725,243.20

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Double scale
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Similar ratio
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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.