Home / 88,018,682.40-132,028,023.60-81,216,237.60

Finding the Fourth Proportional to 88,018,682.40, 132,028,023.60 and 81,216,237.60

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Solution

The fourth proportional to 88,018,682.40, 132,028,023.60 and 81,216,237.60 is: 121,824,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,018,682.40 : 132,028,023.60 = 81,216,237.60 : x
  2. Step 2: Convert to fraction form
    88,018,682.40/132,028,023.60 = 81,216,237.60/x
  3. Step 3: Cross multiply
    88,018,682.40x = 132,028,023.60 × 81,216,237.60
  4. Step 4: Simplify right side
    88,018,682.40x = 10,722,819,334,556,006
  5. Step 5: Solve for x
    x = 10,722,819,334,556,006/88,018,682.40
  6. Step 6: Final answer
    x = 121,824,356.40

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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.