Home / 20,147,666,818.70-30,221,500,228.05-9,661,485,583.10

Finding the Fourth Proportional to 20,147,666,818.70, 30,221,500,228.05 and 9,661,485,583.10

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Solution

The fourth proportional to 20,147,666,818.70, 30,221,500,228.05 and 9,661,485,583.10 is: 14,492,228,374.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147,666,818.70 : 30,221,500,228.05 = 9,661,485,583.10 : x
  2. Step 2: Convert to fraction form
    20,147,666,818.70/30,221,500,228.05 = 9,661,485,583.10/x
  3. Step 3: Cross multiply
    20,147,666,818.70x = 30,221,500,228.05 × 9,661,485,583.10
  4. Step 4: Simplify right side
    20,147,666,818.70x = 291,984,588,752,958,455,808
  5. Step 5: Solve for x
    x = 291,984,588,752,958,455,808/20,147,666,818.70
  6. Step 6: Final answer
    x = 14,492,228,374.65

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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.