Home / 4,878,737.40-7,318,106.10-3,178,126.20

Finding the Fourth Proportional to 4,878,737.40, 7,318,106.10 and 3,178,126.20

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Solution

The fourth proportional to 4,878,737.40, 7,318,106.10 and 3,178,126.20 is: 4,767,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878,737.40 : 7,318,106.10 = 3,178,126.20 : x
  2. Step 2: Convert to fraction form
    4,878,737.40/7,318,106.10 = 3,178,126.20/x
  3. Step 3: Cross multiply
    4,878,737.40x = 7,318,106.10 × 3,178,126.20
  4. Step 4: Simplify right side
    4,878,737.40x = 23,257,864,730,789.82
  5. Step 5: Solve for x
    x = 23,257,864,730,789.82/4,878,737.40
  6. Step 6: Final answer
    x = 4,767,189.30

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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.