Home / 7,208,438.40-10,812,657.60-2,947,190.40

Finding the Fourth Proportional to 7,208,438.40, 10,812,657.60 and 2,947,190.40

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Solution

The fourth proportional to 7,208,438.40, 10,812,657.60 and 2,947,190.40 is: 4,420,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208,438.40 : 10,812,657.60 = 2,947,190.40 : x
  2. Step 2: Convert to fraction form
    7,208,438.40/10,812,657.60 = 2,947,190.40/x
  3. Step 3: Cross multiply
    7,208,438.40x = 10,812,657.60 × 2,947,190.40
  4. Step 4: Simplify right side
    7,208,438.40x = 31,866,960,677,207.04
  5. Step 5: Solve for x
    x = 31,866,960,677,207.04/7,208,438.40
  6. Step 6: Final answer
    x = 4,420,785.60

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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.