Home / 9,191,712.80-13,787,569.20-7,774,536.80

Finding the Fourth Proportional to 9,191,712.80, 13,787,569.20 and 7,774,536.80

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Solution

The fourth proportional to 9,191,712.80, 13,787,569.20 and 7,774,536.80 is: 11,661,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,191,712.80 : 13,787,569.20 = 7,774,536.80 : x
  2. Step 2: Convert to fraction form
    9,191,712.80/13,787,569.20 = 7,774,536.80/x
  3. Step 3: Cross multiply
    9,191,712.80x = 13,787,569.20 × 7,774,536.80
  4. Step 4: Simplify right side
    9,191,712.80x = 107,191,964,127,946.55
  5. Step 5: Solve for x
    x = 107,191,964,127,946.55/9,191,712.80
  6. Step 6: Final answer
    x = 11,661,805.20

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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.