Home / 69,583,721.60-104,176,516.80-42,709,865.60

Finding the Fourth Proportional to 69,583,721.60, 104,176,516.80 and 42,709,865.60

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Solution

The fourth proportional to 69,583,721.60, 104,176,516.80 and 42,709,865.60 is: 63,942,613.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,583,721.60 : 104,176,516.80 = 42,709,865.60 : x
  2. Step 2: Convert to fraction form
    69,583,721.60/104,176,516.80 = 42,709,865.60/x
  3. Step 3: Cross multiply
    69,583,721.60x = 104,176,516.80 × 42,709,865.60
  4. Step 4: Simplify right side
    69,583,721.60x = 4,449,365,031,204,142
  5. Step 5: Solve for x
    x = 4,449,365,031,204,142/69,583,721.60
  6. Step 6: Final answer
    x = 63,942,613.72

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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.