Home / 13,913,078.12-20,871,048.72-4,815,159.76

Finding the Fourth Proportional to 13,913,078.12, 20,871,048.72 and 4,815,159.76

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Solution

The fourth proportional to 13,913,078.12, 20,871,048.72 and 4,815,159.76 is: 7,223,235.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913,078.12 : 20,871,048.72 = 4,815,159.76 : x
  2. Step 2: Convert to fraction form
    13,913,078.12/20,871,048.72 = 4,815,159.76/x
  3. Step 3: Cross multiply
    13,913,078.12x = 20,871,048.72 × 4,815,159.76
  4. Step 4: Simplify right side
    13,913,078.12x = 100,497,433,945,543.50
  5. Step 5: Solve for x
    x = 100,497,433,945,543.50/13,913,078.12
  6. Step 6: Final answer
    x = 7,223,235.08

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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.