Home / 13,756,821.60-20,643,397.20-5,238,019.20

Finding the Fourth Proportional to 13,756,821.60, 20,643,397.20 and 5,238,019.20

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Solution

The fourth proportional to 13,756,821.60, 20,643,397.20 and 5,238,019.20 is: 7,860,137.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756,821.60 : 20,643,397.20 = 5,238,019.20 : x
  2. Step 2: Convert to fraction form
    13,756,821.60/20,643,397.20 = 5,238,019.20/x
  3. Step 3: Cross multiply
    13,756,821.60x = 20,643,397.20 × 5,238,019.20
  4. Step 4: Simplify right side
    13,756,821.60x = 108,130,510,886,826.23
  5. Step 5: Solve for x
    x = 108,130,510,886,826.23/13,756,821.60
  6. Step 6: Final answer
    x = 7,860,137.61

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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.