Home / 13,247,025.71-18,278,215.86-7,739,336.39

Finding the Fourth Proportional to 13,247,025.71, 18,278,215.86 and 7,739,336.39

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Solution

The fourth proportional to 13,247,025.71, 18,278,215.86 and 7,739,336.39 is: 10,678,718.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247,025.71 : 18,278,215.86 = 7,739,336.39 : x
  2. Step 2: Convert to fraction form
    13,247,025.71/18,278,215.86 = 7,739,336.39/x
  3. Step 3: Cross multiply
    13,247,025.71x = 18,278,215.86 × 7,739,336.39
  4. Step 4: Simplify right side
    13,247,025.71x = 141,461,261,058,182.06
  5. Step 5: Solve for x
    x = 141,461,261,058,182.06/13,247,025.71
  6. Step 6: Final answer
    x = 10,678,718.70

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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.