Home / 76,636,000.10-114,954,000.15-68,321,900.90

Finding the Fourth Proportional to 76,636,000.10, 114,954,000.15 and 68,321,900.90

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Solution

The fourth proportional to 76,636,000.10, 114,954,000.15 and 68,321,900.90 is: 102,482,851.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,636,000.10 : 114,954,000.15 = 68,321,900.90 : x
  2. Step 2: Convert to fraction form
    76,636,000.10/114,954,000.15 = 68,321,900.90/x
  3. Step 3: Cross multiply
    76,636,000.10x = 114,954,000.15 × 68,321,900.90
  4. Step 4: Simplify right side
    76,636,000.10x = 7,853,875,806,306,886
  5. Step 5: Solve for x
    x = 7,853,875,806,306,886/76,636,000.10
  6. Step 6: Final answer
    x = 102,482,851.35

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1.5x scale

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.