Home / 132,005,643.20-198,197,421.60-74,610,015.20

Finding the Fourth Proportional to 132,005,643.20, 198,197,421.60 and 74,610,015.20

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Solution

The fourth proportional to 132,005,643.20, 198,197,421.60 and 74,610,015.20 is: 112,021,821.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,005,643.20 : 198,197,421.60 = 74,610,015.20 : x
  2. Step 2: Convert to fraction form
    132,005,643.20/198,197,421.60 = 74,610,015.20/x
  3. Step 3: Cross multiply
    132,005,643.20x = 198,197,421.60 × 74,610,015.20
  4. Step 4: Simplify right side
    132,005,643.20x = 14,787,512,638,176,808
  5. Step 5: Solve for x
    x = 14,787,512,638,176,808/132,005,643.20
  6. Step 6: Final answer
    x = 112,021,821.79

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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.