Home / 10,401,167.40-15,601,751.10-7,881,743.40

Finding the Fourth Proportional to 10,401,167.40, 15,601,751.10 and 7,881,743.40

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Solution

The fourth proportional to 10,401,167.40, 15,601,751.10 and 7,881,743.40 is: 11,822,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,401,167.40 : 15,601,751.10 = 7,881,743.40 : x
  2. Step 2: Convert to fraction form
    10,401,167.40/15,601,751.10 = 7,881,743.40/x
  3. Step 3: Cross multiply
    10,401,167.40x = 15,601,751.10 × 7,881,743.40
  4. Step 4: Simplify right side
    10,401,167.40x = 122,968,998,760,867.75
  5. Step 5: Solve for x
    x = 122,968,998,760,867.75/10,401,167.40
  6. Step 6: Final answer
    x = 11,822,615.10

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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.