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Finding the Fourth Proportional to 8,889,998.80, 13,334,998.20 and 2,906,971.60

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Solution

The fourth proportional to 8,889,998.80, 13,334,998.20 and 2,906,971.60 is: 4,360,457.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889,998.80 : 13,334,998.20 = 2,906,971.60 : x
  2. Step 2: Convert to fraction form
    8,889,998.80/13,334,998.20 = 2,906,971.60/x
  3. Step 3: Cross multiply
    8,889,998.80x = 13,334,998.20 × 2,906,971.60
  4. Step 4: Simplify right side
    8,889,998.80x = 38,764,461,053,451.12
  5. Step 5: Solve for x
    x = 38,764,461,053,451.12/8,889,998.80
  6. Step 6: Final answer
    x = 4,360,457.40

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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.