Home / 15,881,994.72-21,911,214.80-9,351,632.16

Finding the Fourth Proportional to 15,881,994.72, 21,911,214.80 and 9,351,632.16

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Solution

The fourth proportional to 15,881,994.72, 21,911,214.80 and 9,351,632.16 is: 12,901,756.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,881,994.72 : 21,911,214.80 = 9,351,632.16 : x
  2. Step 2: Convert to fraction form
    15,881,994.72/21,911,214.80 = 9,351,632.16/x
  3. Step 3: Cross multiply
    15,881,994.72x = 21,911,214.80 × 9,351,632.16
  4. Step 4: Simplify right side
    15,881,994.72x = 204,905,620,988,347.97
  5. Step 5: Solve for x
    x = 204,905,620,988,347.97/15,881,994.72
  6. Step 6: Final answer
    x = 12,901,756.02

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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.