Home / 54,281,789.20-81,422,683.80-28,772,621.20

Finding the Fourth Proportional to 54,281,789.20, 81,422,683.80 and 28,772,621.20

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Solution

The fourth proportional to 54,281,789.20, 81,422,683.80 and 28,772,621.20 is: 43,158,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,281,789.20 : 81,422,683.80 = 28,772,621.20 : x
  2. Step 2: Convert to fraction form
    54,281,789.20/81,422,683.80 = 28,772,621.20/x
  3. Step 3: Cross multiply
    54,281,789.20x = 81,422,683.80 × 28,772,621.20
  4. Step 4: Simplify right side
    54,281,789.20x = 2,342,744,038,064,776.50
  5. Step 5: Solve for x
    x = 2,342,744,038,064,776.50/54,281,789.20
  6. Step 6: Final answer
    x = 43,158,931.80

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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.