Home / 20,862,671.65-28,792,210.39-11,573,236.67

Finding the Fourth Proportional to 20,862,671.65, 28,792,210.39 and 11,573,236.67

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Solution

The fourth proportional to 20,862,671.65, 28,792,210.39 and 11,573,236.67 is: 15,972,022.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862,671.65 : 28,792,210.39 = 11,573,236.67 : x
  2. Step 2: Convert to fraction form
    20,862,671.65/28,792,210.39 = 11,573,236.67/x
  3. Step 3: Cross multiply
    20,862,671.65x = 28,792,210.39 × 11,573,236.67
  4. Step 4: Simplify right side
    20,862,671.65x = 333,219,064,923,008.81
  5. Step 5: Solve for x
    x = 333,219,064,923,008.81/20,862,671.65
  6. Step 6: Final answer
    x = 15,972,022.69

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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.