Home / 76,611,214.40-114,916,821.60-47,889,780.80

Finding the Fourth Proportional to 76,611,214.40, 114,916,821.60 and 47,889,780.80

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Solution

The fourth proportional to 76,611,214.40, 114,916,821.60 and 47,889,780.80 is: 71,834,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,611,214.40 : 114,916,821.60 = 47,889,780.80 : x
  2. Step 2: Convert to fraction form
    76,611,214.40/114,916,821.60 = 47,889,780.80/x
  3. Step 3: Cross multiply
    76,611,214.40x = 114,916,821.60 × 47,889,780.80
  4. Step 4: Simplify right side
    76,611,214.40x = 5,503,341,396,656,705
  5. Step 5: Solve for x
    x = 5,503,341,396,656,705/76,611,214.40
  6. Step 6: Final answer
    x = 71,834,671.20

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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.