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Finding the Fourth Proportional to 40,371,978.75, 55,712,619.72 and 22,967,952.99

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Solution

The fourth proportional to 40,371,978.75, 55,712,619.72 and 22,967,952.99 is: 31,695,370.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,371,978.75 : 55,712,619.72 = 22,967,952.99 : x
  2. Step 2: Convert to fraction form
    40,371,978.75/55,712,619.72 = 22,967,952.99/x
  3. Step 3: Cross multiply
    40,371,978.75x = 55,712,619.72 × 22,967,952.99
  4. Step 4: Simplify right side
    40,371,978.75x = 1,279,604,830,678,706.75
  5. Step 5: Solve for x
    x = 1,279,604,830,678,706.75/40,371,978.75
  6. Step 6: Final answer
    x = 31,695,370.66

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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.