Home / 13,475,476.70-20,213,215.05-7,407,863.90

Finding the Fourth Proportional to 13,475,476.70, 20,213,215.05 and 7,407,863.90

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Solution

The fourth proportional to 13,475,476.70, 20,213,215.05 and 7,407,863.90 is: 11,111,795.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475,476.70 : 20,213,215.05 = 7,407,863.90 : x
  2. Step 2: Convert to fraction form
    13,475,476.70/20,213,215.05 = 7,407,863.90/x
  3. Step 3: Cross multiply
    13,475,476.70x = 20,213,215.05 × 7,407,863.90
  4. Step 4: Simplify right side
    13,475,476.70x = 149,736,746,071,831.72
  5. Step 5: Solve for x
    x = 149,736,746,071,831.72/13,475,476.70
  6. Step 6: Final answer
    x = 11,111,795.85

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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.