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Finding the Fourth Proportional to 28,981,301.80, 43,471,952.70 and 17,643,893.80

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Solution

The fourth proportional to 28,981,301.80, 43,471,952.70 and 17,643,893.80 is: 26,465,840.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,981,301.80 : 43,471,952.70 = 17,643,893.80 : x
  2. Step 2: Convert to fraction form
    28,981,301.80/43,471,952.70 = 17,643,893.80/x
  3. Step 3: Cross multiply
    28,981,301.80x = 43,471,952.70 × 17,643,893.80
  4. Step 4: Simplify right side
    28,981,301.80x = 767,014,516,717,423.38
  5. Step 5: Solve for x
    x = 767,014,516,717,423.38/28,981,301.80
  6. Step 6: Final answer
    x = 26,465,840.70

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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.