Home / 7,780,875.92-10,739,400.36-4,562,648.72

Finding the Fourth Proportional to 7,780,875.92, 10,739,400.36 and 4,562,648.72

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Solution

The fourth proportional to 7,780,875.92, 10,739,400.36 and 4,562,648.72 is: 6,297,505.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780,875.92 : 10,739,400.36 = 4,562,648.72 : x
  2. Step 2: Convert to fraction form
    7,780,875.92/10,739,400.36 = 4,562,648.72/x
  3. Step 3: Cross multiply
    7,780,875.92x = 10,739,400.36 × 4,562,648.72
  4. Step 4: Simplify right side
    7,780,875.92x = 49,000,111,306,121.53
  5. Step 5: Solve for x
    x = 49,000,111,306,121.53/7,780,875.92
  6. Step 6: Final answer
    x = 6,297,505.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.