Home / 54,128,464.80-81,192,697.20-42,649,339.20

Finding the Fourth Proportional to 54,128,464.80, 81,192,697.20 and 42,649,339.20

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Solution

The fourth proportional to 54,128,464.80, 81,192,697.20 and 42,649,339.20 is: 63,974,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,128,464.80 : 81,192,697.20 = 42,649,339.20 : x
  2. Step 2: Convert to fraction form
    54,128,464.80/81,192,697.20 = 42,649,339.20/x
  3. Step 3: Cross multiply
    54,128,464.80x = 81,192,697.20 × 42,649,339.20
  4. Step 4: Simplify right side
    54,128,464.80x = 3,462,814,883,445,690.50
  5. Step 5: Solve for x
    x = 3,462,814,883,445,690.50/54,128,464.80
  6. Step 6: Final answer
    x = 63,974,008.80

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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.