Home / 15,631,432.48-21,572,064.30-8,662,090.36

Finding the Fourth Proportional to 15,631,432.48, 21,572,064.30 and 8,662,090.36

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Solution

The fourth proportional to 15,631,432.48, 21,572,064.30 and 8,662,090.36 is: 11,954,065.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631,432.48 : 21,572,064.30 = 8,662,090.36 : x
  2. Step 2: Convert to fraction form
    15,631,432.48/21,572,064.30 = 8,662,090.36/x
  3. Step 3: Cross multiply
    15,631,432.48x = 21,572,064.30 × 8,662,090.36
  4. Step 4: Simplify right side
    15,631,432.48x = 186,859,170,218,330.16
  5. Step 5: Solve for x
    x = 186,859,170,218,330.16/15,631,432.48
  6. Step 6: Final answer
    x = 11,954,065.66

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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.