Home / 138,601,216.70-207,901,825.05-70,576,768.70

Finding the Fourth Proportional to 138,601,216.70, 207,901,825.05 and 70,576,768.70

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Solution

The fourth proportional to 138,601,216.70, 207,901,825.05 and 70,576,768.70 is: 105,865,153.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,601,216.70 : 207,901,825.05 = 70,576,768.70 : x
  2. Step 2: Convert to fraction form
    138,601,216.70/207,901,825.05 = 70,576,768.70/x
  3. Step 3: Cross multiply
    138,601,216.70x = 207,901,825.05 × 70,576,768.70
  4. Step 4: Simplify right side
    138,601,216.70x = 14,673,039,018,861,718
  5. Step 5: Solve for x
    x = 14,673,039,018,861,718/138,601,216.70
  6. Step 6: Final answer
    x = 105,865,153.05

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1.5x scale

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.