Home / 68,437,123-94,419,979.50-39,047,342.20

Finding the Fourth Proportional to 68,437,123, 94,419,979.50 and 39,047,342.20

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Solution

The fourth proportional to 68,437,123, 94,419,979.50 and 39,047,342.20 is: 53,872,066.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,437,123 : 94,419,979.50 = 39,047,342.20 : x
  2. Step 2: Convert to fraction form
    68,437,123/94,419,979.50 = 39,047,342.20/x
  3. Step 3: Cross multiply
    68,437,123x = 94,419,979.50 × 39,047,342.20
  4. Step 4: Simplify right side
    68,437,123x = 3,686,849,250,053,485
  5. Step 5: Solve for x
    x = 3,686,849,250,053,485/68,437,123
  6. Step 6: Final answer
    x = 53,872,066.63

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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.