Home / 21,281,030.10-31,925,692.35-8,499,359.70

Finding the Fourth Proportional to 21,281,030.10, 31,925,692.35 and 8,499,359.70

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Solution

The fourth proportional to 21,281,030.10, 31,925,692.35 and 8,499,359.70 is: 12,750,695.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,281,030.10 : 31,925,692.35 = 8,499,359.70 : x
  2. Step 2: Convert to fraction form
    21,281,030.10/31,925,692.35 = 8,499,359.70/x
  3. Step 3: Cross multiply
    21,281,030.10x = 31,925,692.35 × 8,499,359.70
  4. Step 4: Simplify right side
    21,281,030.10x = 271,347,942,954,188.28
  5. Step 5: Solve for x
    x = 271,347,942,954,188.28/21,281,030.10
  6. Step 6: Final answer
    x = 12,750,695.89

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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.