Home / 6,912,006.20-10,368,009.30-5,120,415.80

Finding the Fourth Proportional to 6,912,006.20, 10,368,009.30 and 5,120,415.80

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Solution

The fourth proportional to 6,912,006.20, 10,368,009.30 and 5,120,415.80 is: 7,680,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912,006.20 : 10,368,009.30 = 5,120,415.80 : x
  2. Step 2: Convert to fraction form
    6,912,006.20/10,368,009.30 = 5,120,415.80/x
  3. Step 3: Cross multiply
    6,912,006.20x = 10,368,009.30 × 5,120,415.80
  4. Step 4: Simplify right side
    6,912,006.20x = 53,088,518,634,266.95
  5. Step 5: Solve for x
    x = 53,088,518,634,266.95/6,912,006.20
  6. Step 6: Final answer
    x = 7,680,623.70

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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.