Home / 8,914,917.80-13,372,376.70-7,639,459.40

Finding the Fourth Proportional to 8,914,917.80, 13,372,376.70 and 7,639,459.40

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Solution

The fourth proportional to 8,914,917.80, 13,372,376.70 and 7,639,459.40 is: 11,459,189.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914,917.80 : 13,372,376.70 = 7,639,459.40 : x
  2. Step 2: Convert to fraction form
    8,914,917.80/13,372,376.70 = 7,639,459.40/x
  3. Step 3: Cross multiply
    8,914,917.80x = 13,372,376.70 × 7,639,459.40
  4. Step 4: Simplify right side
    8,914,917.80x = 102,157,728,881,155.98
  5. Step 5: Solve for x
    x = 102,157,728,881,155.98/8,914,917.80
  6. Step 6: Final answer
    x = 11,459,189.10

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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.