Home / 7,381,323.40-11,071,985.10-7,281,790.60

Finding the Fourth Proportional to 7,381,323.40, 11,071,985.10 and 7,281,790.60

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Solution

The fourth proportional to 7,381,323.40, 11,071,985.10 and 7,281,790.60 is: 10,922,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381,323.40 : 11,071,985.10 = 7,281,790.60 : x
  2. Step 2: Convert to fraction form
    7,381,323.40/11,071,985.10 = 7,281,790.60/x
  3. Step 3: Cross multiply
    7,381,323.40x = 11,071,985.10 × 7,281,790.60
  4. Step 4: Simplify right side
    7,381,323.40x = 80,623,877,024,520.05
  5. Step 5: Solve for x
    x = 80,623,877,024,520.05/7,381,323.40
  6. Step 6: Final answer
    x = 10,922,685.90

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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.