Home / 8,190,700.80-12,309,670.80-7,151,438.40

Finding the Fourth Proportional to 8,190,700.80, 12,309,670.80 and 7,151,438.40

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Solution

The fourth proportional to 8,190,700.80, 12,309,670.80 and 7,151,438.40 is: 10,747,780.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190,700.80 : 12,309,670.80 = 7,151,438.40 : x
  2. Step 2: Convert to fraction form
    8,190,700.80/12,309,670.80 = 7,151,438.40/x
  3. Step 3: Cross multiply
    8,190,700.80x = 12,309,670.80 × 7,151,438.40
  4. Step 4: Simplify right side
    8,190,700.80x = 88,031,852,450,478.73
  5. Step 5: Solve for x
    x = 88,031,852,450,478.73/8,190,700.80
  6. Step 6: Final answer
    x = 10,747,780.27

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1.5x scale

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.