Home / 210,086,331.84-289,967,510.88-123,194,197.44

Finding the Fourth Proportional to 210,086,331.84, 289,967,510.88 and 123,194,197.44

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Solution

The fourth proportional to 210,086,331.84, 289,967,510.88 and 123,194,197.44 is: 170,036,358.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,086,331.84 : 289,967,510.88 = 123,194,197.44 : x
  2. Step 2: Convert to fraction form
    210,086,331.84/289,967,510.88 = 123,194,197.44/x
  3. Step 3: Cross multiply
    210,086,331.84x = 289,967,510.88 × 123,194,197.44
  4. Step 4: Simplify right side
    210,086,331.84x = 35,722,314,786,536,068
  5. Step 5: Solve for x
    x = 35,722,314,786,536,068/210,086,331.84
  6. Step 6: Final answer
    x = 170,036,358.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.