Home / 138,601,209.70-207,901,814.55-70,576,761.70

Finding the Fourth Proportional to 138,601,209.70, 207,901,814.55 and 70,576,761.70

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Solution

The fourth proportional to 138,601,209.70, 207,901,814.55 and 70,576,761.70 is: 105,865,142.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,601,209.70 : 207,901,814.55 = 70,576,761.70 : x
  2. Step 2: Convert to fraction form
    138,601,209.70/207,901,814.55 = 70,576,761.70/x
  3. Step 3: Cross multiply
    138,601,209.70x = 207,901,814.55 × 70,576,761.70
  4. Step 4: Simplify right side
    138,601,209.70x = 14,673,036,822,492,944
  5. Step 5: Solve for x
    x = 14,673,036,822,492,944/138,601,209.70
  6. Step 6: Final answer
    x = 105,865,142.55

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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.