Home / 145,080,014.60-217,620,021.90-99,163,512.20

Finding the Fourth Proportional to 145,080,014.60, 217,620,021.90 and 99,163,512.20

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Solution

The fourth proportional to 145,080,014.60, 217,620,021.90 and 99,163,512.20 is: 148,745,268.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,080,014.60 : 217,620,021.90 = 99,163,512.20 : x
  2. Step 2: Convert to fraction form
    145,080,014.60/217,620,021.90 = 99,163,512.20/x
  3. Step 3: Cross multiply
    145,080,014.60x = 217,620,021.90 × 99,163,512.20
  4. Step 4: Simplify right side
    145,080,014.60x = 21,579,965,696,644,920
  5. Step 5: Solve for x
    x = 21,579,965,696,644,920/145,080,014.60
  6. Step 6: Final answer
    x = 148,745,268.30

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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.