Home / 83,146,647.20-124,578,253.20-70,958,933.60

Finding the Fourth Proportional to 83,146,647.20, 124,578,253.20 and 70,958,933.60

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Solution

The fourth proportional to 83,146,647.20, 124,578,253.20 and 70,958,933.60 is: 106,317,455.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,146,647.20 : 124,578,253.20 = 70,958,933.60 : x
  2. Step 2: Convert to fraction form
    83,146,647.20/124,578,253.20 = 70,958,933.60/x
  3. Step 3: Cross multiply
    83,146,647.20x = 124,578,253.20 × 70,958,933.60
  4. Step 4: Simplify right side
    83,146,647.20x = 8,839,939,996,822,787
  5. Step 5: Solve for x
    x = 8,839,939,996,822,787/83,146,647.20
  6. Step 6: Final answer
    x = 106,317,455.90

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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.