Home / 8,177,112,009.40-12,265,668,014.10-5,238,455,855.80

Finding the Fourth Proportional to 8,177,112,009.40, 12,265,668,014.10 and 5,238,455,855.80

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Solution

The fourth proportional to 8,177,112,009.40, 12,265,668,014.10 and 5,238,455,855.80 is: 7,857,683,783.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,177,112,009.40 : 12,265,668,014.10 = 5,238,455,855.80 : x
  2. Step 2: Convert to fraction form
    8,177,112,009.40/12,265,668,014.10 = 5,238,455,855.80/x
  3. Step 3: Cross multiply
    8,177,112,009.40x = 12,265,668,014.10 × 5,238,455,855.80
  4. Step 4: Simplify right side
    8,177,112,009.40x = 64,253,160,433,760,903,168
  5. Step 5: Solve for x
    x = 64,253,160,433,760,903,168/8,177,112,009.40
  6. Step 6: Final answer
    x = 7,857,683,783.70

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Double scale
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Similar ratio
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1.5x scale

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.