Home / 12,345,405.39-17,036,436.29-6,838,763.22

Finding the Fourth Proportional to 12,345,405.39, 17,036,436.29 and 6,838,763.22

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Solution

The fourth proportional to 12,345,405.39, 17,036,436.29 and 6,838,763.22 is: 9,437,369.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345,405.39 : 17,036,436.29 = 6,838,763.22 : x
  2. Step 2: Convert to fraction form
    12,345,405.39/17,036,436.29 = 6,838,763.22/x
  3. Step 3: Cross multiply
    12,345,405.39x = 17,036,436.29 × 6,838,763.22
  4. Step 4: Simplify right side
    12,345,405.39x = 116,508,153,865,731.44
  5. Step 5: Solve for x
    x = 116,508,153,865,731.44/12,345,405.39
  6. Step 6: Final answer
    x = 9,437,369.63

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1.5x scale

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.