Home / 8,970,491.80-13,455,737.70-5,128,370.20

Finding the Fourth Proportional to 8,970,491.80, 13,455,737.70 and 5,128,370.20

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Solution

The fourth proportional to 8,970,491.80, 13,455,737.70 and 5,128,370.20 is: 7,692,555.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970,491.80 : 13,455,737.70 = 5,128,370.20 : x
  2. Step 2: Convert to fraction form
    8,970,491.80/13,455,737.70 = 5,128,370.20/x
  3. Step 3: Cross multiply
    8,970,491.80x = 13,455,737.70 × 5,128,370.20
  4. Step 4: Simplify right side
    8,970,491.80x = 69,006,004,239,696.54
  5. Step 5: Solve for x
    x = 69,006,004,239,696.54/8,970,491.80
  6. Step 6: Final answer
    x = 7,692,555.30

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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.