Home / 100,039,223.25-138,054,128.09-54,254,135.25

Finding the Fourth Proportional to 100,039,223.25, 138,054,128.09 and 54,254,135.25

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Solution

The fourth proportional to 100,039,223.25, 138,054,128.09 and 54,254,135.25 is: 74,870,706.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,039,223.25 : 138,054,128.09 = 54,254,135.25 : x
  2. Step 2: Convert to fraction form
    100,039,223.25/138,054,128.09 = 54,254,135.25/x
  3. Step 3: Cross multiply
    100,039,223.25x = 138,054,128.09 × 54,254,135.25
  4. Step 4: Simplify right side
    100,039,223.25x = 7,490,007,337,215,684
  5. Step 5: Solve for x
    x = 7,490,007,337,215,684/100,039,223.25
  6. Step 6: Final answer
    x = 74,870,706.65

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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.