Home / 7,979,904,008.80-11,969,856,013.20-3,320,229,320.80

Finding the Fourth Proportional to 7,979,904,008.80, 11,969,856,013.20 and 3,320,229,320.80

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Solution

The fourth proportional to 7,979,904,008.80, 11,969,856,013.20 and 3,320,229,320.80 is: 4,980,343,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979,904,008.80 : 11,969,856,013.20 = 3,320,229,320.80 : x
  2. Step 2: Convert to fraction form
    7,979,904,008.80/11,969,856,013.20 = 3,320,229,320.80/x
  3. Step 3: Cross multiply
    7,979,904,008.80x = 11,969,856,013.20 × 3,320,229,320.80
  4. Step 4: Simplify right side
    7,979,904,008.80x = 39,742,666,900,780,834,816
  5. Step 5: Solve for x
    x = 39,742,666,900,780,834,816/7,979,904,008.80
  6. Step 6: Final answer
    x = 4,980,343,981.20

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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.