Home / 8,798,694.75-12,142,170-5,129,783.55

Finding the Fourth Proportional to 8,798,694.75, 12,142,170 and 5,129,783.55

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Solution

The fourth proportional to 8,798,694.75, 12,142,170 and 5,129,783.55 is: 7,079,084.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798,694.75 : 12,142,170 = 5,129,783.55 : x
  2. Step 2: Convert to fraction form
    8,798,694.75/12,142,170 = 5,129,783.55/x
  3. Step 3: Cross multiply
    8,798,694.75x = 12,142,170 × 5,129,783.55
  4. Step 4: Simplify right side
    8,798,694.75x = 62,286,703,927,303.50
  5. Step 5: Solve for x
    x = 62,286,703,927,303.50/8,798,694.75
  6. Step 6: Final answer
    x = 7,079,084.53

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.