Home / 81,243,743.60-121,794,756.60-48,908,511.20

Finding the Fourth Proportional to 81,243,743.60, 121,794,756.60 and 48,908,511.20

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Solution

The fourth proportional to 81,243,743.60, 121,794,756.60 and 48,908,511.20 is: 73,320,110.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,243,743.60 : 121,794,756.60 = 48,908,511.20 : x
  2. Step 2: Convert to fraction form
    81,243,743.60/121,794,756.60 = 48,908,511.20/x
  3. Step 3: Cross multiply
    81,243,743.60x = 121,794,756.60 × 48,908,511.20
  4. Step 4: Simplify right side
    81,243,743.60x = 5,956,800,217,272,374
  5. Step 5: Solve for x
    x = 5,956,800,217,272,374/81,243,743.60
  6. Step 6: Final answer
    x = 73,320,110.00

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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.