Home / 6,480,012.20-9,720,018.30-5,283,285.80

Finding the Fourth Proportional to 6,480,012.20, 9,720,018.30 and 5,283,285.80

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Solution

The fourth proportional to 6,480,012.20, 9,720,018.30 and 5,283,285.80 is: 7,924,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480,012.20 : 9,720,018.30 = 5,283,285.80 : x
  2. Step 2: Convert to fraction form
    6,480,012.20/9,720,018.30 = 5,283,285.80/x
  3. Step 3: Cross multiply
    6,480,012.20x = 9,720,018.30 × 5,283,285.80
  4. Step 4: Simplify right side
    6,480,012.20x = 51,353,634,660,130.14
  5. Step 5: Solve for x
    x = 51,353,634,660,130.14/6,480,012.20
  6. Step 6: Final answer
    x = 7,924,928.70

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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.