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Finding the Fourth Proportional to 83,993,807.79, 115,845,744.78 and 54,634,515.59

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Solution

The fourth proportional to 83,993,807.79, 115,845,744.78 and 54,634,515.59 is: 75,352,889.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,993,807.79 : 115,845,744.78 = 54,634,515.59 : x
  2. Step 2: Convert to fraction form
    83,993,807.79/115,845,744.78 = 54,634,515.59/x
  3. Step 3: Cross multiply
    83,993,807.79x = 115,845,744.78 × 54,634,515.59
  4. Step 4: Simplify right side
    83,993,807.79x = 6,329,176,149,507,686
  5. Step 5: Solve for x
    x = 6,329,176,149,507,686/83,993,807.79
  6. Step 6: Final answer
    x = 75,352,889.89

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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.