Home / 13,191,700.80-19,776,031.20-5,110,190.40

Finding the Fourth Proportional to 13,191,700.80, 19,776,031.20 and 5,110,190.40

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Solution

The fourth proportional to 13,191,700.80, 19,776,031.20 and 5,110,190.40 is: 7,660,822.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191,700.80 : 19,776,031.20 = 5,110,190.40 : x
  2. Step 2: Convert to fraction form
    13,191,700.80/19,776,031.20 = 5,110,190.40/x
  3. Step 3: Cross multiply
    13,191,700.80x = 19,776,031.20 × 5,110,190.40
  4. Step 4: Simplify right side
    13,191,700.80x = 101,059,284,788,340.48
  5. Step 5: Solve for x
    x = 101,059,284,788,340.48/13,191,700.80
  6. Step 6: Final answer
    x = 7,660,822.99

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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.