Home / 7,286,731.20-10,912,600.80-3,913,502.40

Finding the Fourth Proportional to 7,286,731.20, 10,912,600.80 and 3,913,502.40

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Solution

The fourth proportional to 7,286,731.20, 10,912,600.80 and 3,913,502.40 is: 5,860,856.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286,731.20 : 10,912,600.80 = 3,913,502.40 : x
  2. Step 2: Convert to fraction form
    7,286,731.20/10,912,600.80 = 3,913,502.40/x
  3. Step 3: Cross multiply
    7,286,731.20x = 10,912,600.80 × 3,913,502.40
  4. Step 4: Simplify right side
    7,286,731.20x = 42,706,489,421,041.92
  5. Step 5: Solve for x
    x = 42,706,489,421,041.92/7,286,731.20
  6. Step 6: Final answer
    x = 5,860,856.98

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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.