Home / 7,120,928.20-10,681,392.30-5,217,363.40

Finding the Fourth Proportional to 7,120,928.20, 10,681,392.30 and 5,217,363.40

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Solution

The fourth proportional to 7,120,928.20, 10,681,392.30 and 5,217,363.40 is: 7,826,045.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120,928.20 : 10,681,392.30 = 5,217,363.40 : x
  2. Step 2: Convert to fraction form
    7,120,928.20/10,681,392.30 = 5,217,363.40/x
  3. Step 3: Cross multiply
    7,120,928.20x = 10,681,392.30 × 5,217,363.40
  4. Step 4: Simplify right side
    7,120,928.20x = 55,728,705,247,061.83
  5. Step 5: Solve for x
    x = 55,728,705,247,061.83/7,120,928.20
  6. Step 6: Final answer
    x = 7,826,045.10

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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.