Home / 40,278,301.60-55,583,890.32-21,943,530.40

Finding the Fourth Proportional to 40,278,301.60, 55,583,890.32 and 21,943,530.40

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Solution

The fourth proportional to 40,278,301.60, 55,583,890.32 and 21,943,530.40 is: 30,281,981.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,278,301.60 : 55,583,890.32 = 21,943,530.40 : x
  2. Step 2: Convert to fraction form
    40,278,301.60/55,583,890.32 = 21,943,530.40/x
  3. Step 3: Cross multiply
    40,278,301.60x = 55,583,890.32 × 21,943,530.40
  4. Step 4: Simplify right side
    40,278,301.60x = 1,219,706,786,987,185.75
  5. Step 5: Solve for x
    x = 1,219,706,786,987,185.75/40,278,301.60
  6. Step 6: Final answer
    x = 30,281,981.58

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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.