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Finding the Fourth Proportional to 17,883,437.80, 26,828,655.90 and 7,648,277.80

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Solution

The fourth proportional to 17,883,437.80, 26,828,655.90 and 7,648,277.80 is: 11,473,913.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,883,437.80 : 26,828,655.90 = 7,648,277.80 : x
  2. Step 2: Convert to fraction form
    17,883,437.80/26,828,655.90 = 7,648,277.80/x
  3. Step 3: Cross multiply
    17,883,437.80x = 26,828,655.90 × 7,648,277.80
  4. Step 4: Simplify right side
    17,883,437.80x = 205,193,013,323,809
  5. Step 5: Solve for x
    x = 205,193,013,323,809/17,883,437.80
  6. Step 6: Final answer
    x = 11,473,913.22

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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.