Home / 20,736,092.10-31,104,138.15-11,778,140.10

Finding the Fourth Proportional to 20,736,092.10, 31,104,138.15 and 11,778,140.10

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Solution

The fourth proportional to 20,736,092.10, 31,104,138.15 and 11,778,140.10 is: 17,667,210.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,092.10 : 31,104,138.15 = 11,778,140.10 : x
  2. Step 2: Convert to fraction form
    20,736,092.10/31,104,138.15 = 11,778,140.10/x
  3. Step 3: Cross multiply
    20,736,092.10x = 31,104,138.15 × 11,778,140.10
  4. Step 4: Simplify right side
    20,736,092.10x = 366,348,896,820,454.81
  5. Step 5: Solve for x
    x = 366,348,896,820,454.81/20,736,092.10
  6. Step 6: Final answer
    x = 17,667,210.15

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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.