Home / 71,620,007.40-107,430,011.10-61,878,234.60

Finding the Fourth Proportional to 71,620,007.40, 107,430,011.10 and 61,878,234.60

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Solution

The fourth proportional to 71,620,007.40, 107,430,011.10 and 61,878,234.60 is: 92,817,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,620,007.40 : 107,430,011.10 = 61,878,234.60 : x
  2. Step 2: Convert to fraction form
    71,620,007.40/107,430,011.10 = 61,878,234.60/x
  3. Step 3: Cross multiply
    71,620,007.40x = 107,430,011.10 × 61,878,234.60
  4. Step 4: Simplify right side
    71,620,007.40x = 6,647,579,429,926,404
  5. Step 5: Solve for x
    x = 6,647,579,429,926,404/71,620,007.40
  6. Step 6: Final answer
    x = 92,817,351.90

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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.