Home / 12,168,352-18,270,470.88-6,787,515.52

Finding the Fourth Proportional to 12,168,352, 18,270,470.88 and 6,787,515.52

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Solution

The fourth proportional to 12,168,352, 18,270,470.88 and 6,787,515.52 is: 10,191,281.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168,352 : 18,270,470.88 = 6,787,515.52 : x
  2. Step 2: Convert to fraction form
    12,168,352/18,270,470.88 = 6,787,515.52/x
  3. Step 3: Cross multiply
    12,168,352x = 18,270,470.88 × 6,787,515.52
  4. Step 4: Simplify right side
    12,168,352x = 124,011,104,655,708.05
  5. Step 5: Solve for x
    x = 124,011,104,655,708.05/12,168,352
  6. Step 6: Final answer
    x = 10,191,281.83

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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.