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Finding the Fourth Proportional to 88,978,401.80, 133,467,602.70 and 69,868,104.20

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Solution

The fourth proportional to 88,978,401.80, 133,467,602.70 and 69,868,104.20 is: 104,802,156.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,978,401.80 : 133,467,602.70 = 69,868,104.20 : x
  2. Step 2: Convert to fraction form
    88,978,401.80/133,467,602.70 = 69,868,104.20/x
  3. Step 3: Cross multiply
    88,978,401.80x = 133,467,602.70 × 69,868,104.20
  4. Step 4: Simplify right side
    88,978,401.80x = 9,325,128,372,767,802
  5. Step 5: Solve for x
    x = 9,325,128,372,767,802/88,978,401.80
  6. Step 6: Final answer
    x = 104,802,156.30

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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.