Home / 12,370,155.21-18,555,816.02-10,207,168.47

Finding the Fourth Proportional to 12,370,155.21, 18,555,816.02 and 10,207,168.47

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Solution

The fourth proportional to 12,370,155.21, 18,555,816.02 and 10,207,168.47 is: 15,311,233.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,370,155.21 : 18,555,816.02 = 10,207,168.47 : x
  2. Step 2: Convert to fraction form
    12,370,155.21/18,555,816.02 = 10,207,168.47/x
  3. Step 3: Cross multiply
    12,370,155.21x = 18,555,816.02 × 10,207,168.47
  4. Step 4: Simplify right side
    12,370,155.21x = 189,402,340,163,429.06
  5. Step 5: Solve for x
    x = 189,402,340,163,429.06/12,370,155.21
  6. Step 6: Final answer
    x = 15,311,233.93

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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.