Home / 7,185,878.92-10,778,818.80-5,739,791.74

Finding the Fourth Proportional to 7,185,878.92, 10,778,818.80 and 5,739,791.74

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Solution

The fourth proportional to 7,185,878.92, 10,778,818.80 and 5,739,791.74 is: 8,609,687.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185,878.92 : 10,778,818.80 = 5,739,791.74 : x
  2. Step 2: Convert to fraction form
    7,185,878.92/10,778,818.80 = 5,739,791.74/x
  3. Step 3: Cross multiply
    7,185,878.92x = 10,778,818.80 × 5,739,791.74
  4. Step 4: Simplify right side
    7,185,878.92x = 61,868,175,170,404.74
  5. Step 5: Solve for x
    x = 61,868,175,170,404.74/7,185,878.92
  6. Step 6: Final answer
    x = 8,609,687.96

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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.