Home / 8,720,231.52-12,032,640.36-5,234,831.28

Finding the Fourth Proportional to 8,720,231.52, 12,032,640.36 and 5,234,831.28

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Solution

The fourth proportional to 8,720,231.52, 12,032,640.36 and 5,234,831.28 is: 7,223,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720,231.52 : 12,032,640.36 = 5,234,831.28 : x
  2. Step 2: Convert to fraction form
    8,720,231.52/12,032,640.36 = 5,234,831.28/x
  3. Step 3: Cross multiply
    8,720,231.52x = 12,032,640.36 × 5,234,831.28
  4. Step 4: Simplify right side
    8,720,231.52x = 62,988,842,137,518.46
  5. Step 5: Solve for x
    x = 62,988,842,137,518.46/8,720,231.52
  6. Step 6: Final answer
    x = 7,223,299.29

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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.