Home / 39,304,978.95-54,240,144.33-21,423,353.43

Finding the Fourth Proportional to 39,304,978.95, 54,240,144.33 and 21,423,353.43

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Solution

The fourth proportional to 39,304,978.95, 54,240,144.33 and 21,423,353.43 is: 29,563,831.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,304,978.95 : 54,240,144.33 = 21,423,353.43 : x
  2. Step 2: Convert to fraction form
    39,304,978.95/54,240,144.33 = 21,423,353.43/x
  3. Step 3: Cross multiply
    39,304,978.95x = 54,240,144.33 × 21,423,353.43
  4. Step 4: Simplify right side
    39,304,978.95x = 1,162,005,782,075,800.50
  5. Step 5: Solve for x
    x = 1,162,005,782,075,800.50/39,304,978.95
  6. Step 6: Final answer
    x = 29,563,831.69

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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.