Home / 81,662,442.30-122,493,663.45-70,576,976.70

Finding the Fourth Proportional to 81,662,442.30, 122,493,663.45 and 70,576,976.70

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Solution

The fourth proportional to 81,662,442.30, 122,493,663.45 and 70,576,976.70 is: 105,865,465.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,662,442.30 : 122,493,663.45 = 70,576,976.70 : x
  2. Step 2: Convert to fraction form
    81,662,442.30/122,493,663.45 = 70,576,976.70/x
  3. Step 3: Cross multiply
    81,662,442.30x = 122,493,663.45 × 70,576,976.70
  4. Step 4: Simplify right side
    81,662,442.30x = 8,645,232,431,208,292
  5. Step 5: Solve for x
    x = 8,645,232,431,208,292/81,662,442.30
  6. Step 6: Final answer
    x = 105,865,465.05

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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.