Home / 8,158,102.80-12,246,011.55-5,128,889.10

Finding the Fourth Proportional to 8,158,102.80, 12,246,011.55 and 5,128,889.10

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Solution

The fourth proportional to 8,158,102.80, 12,246,011.55 and 5,128,889.10 is: 7,698,902.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158,102.80 : 12,246,011.55 = 5,128,889.10 : x
  2. Step 2: Convert to fraction form
    8,158,102.80/12,246,011.55 = 5,128,889.10/x
  3. Step 3: Cross multiply
    8,158,102.80x = 12,246,011.55 × 5,128,889.10
  4. Step 4: Simplify right side
    8,158,102.80x = 62,808,435,157,269.10
  5. Step 5: Solve for x
    x = 62,808,435,157,269.10/8,158,102.80
  6. Step 6: Final answer
    x = 7,698,902.15

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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.