Home / 69,871,948.78-104,826,792.84-21,348,479.48

Finding the Fourth Proportional to 69,871,948.78, 104,826,792.84 and 21,348,479.48

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Solution

The fourth proportional to 69,871,948.78, 104,826,792.84 and 21,348,479.48 is: 32,028,484.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,871,948.78 : 104,826,792.84 = 21,348,479.48 : x
  2. Step 2: Convert to fraction form
    69,871,948.78/104,826,792.84 = 21,348,479.48/x
  3. Step 3: Cross multiply
    69,871,948.78x = 104,826,792.84 × 21,348,479.48
  4. Step 4: Simplify right side
    69,871,948.78x = 2,237,892,635,898,951
  5. Step 5: Solve for x
    x = 2,237,892,635,898,951/69,871,948.78
  6. Step 6: Final answer
    x = 32,028,484.61

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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.