Home / 20,147,666,853.70-30,221,500,280.55-9,661,485,618.10

Finding the Fourth Proportional to 20,147,666,853.70, 30,221,500,280.55 and 9,661,485,618.10

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Solution

The fourth proportional to 20,147,666,853.70, 30,221,500,280.55 and 9,661,485,618.10 is: 14,492,228,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147,666,853.70 : 30,221,500,280.55 = 9,661,485,618.10 : x
  2. Step 2: Convert to fraction form
    20,147,666,853.70/30,221,500,280.55 = 9,661,485,618.10/x
  3. Step 3: Cross multiply
    20,147,666,853.70x = 30,221,500,280.55 × 9,661,485,618.10
  4. Step 4: Simplify right side
    20,147,666,853.70x = 291,984,590,317,938,933,760
  5. Step 5: Solve for x
    x = 291,984,590,317,938,933,760/20,147,666,853.70
  6. Step 6: Final answer
    x = 14,492,228,427.15

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Double scale
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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.