Home / 128,534,846.48-177,377,445.68-69,796,988.56

Finding the Fourth Proportional to 128,534,846.48, 177,377,445.68 and 69,796,988.56

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Solution

The fourth proportional to 128,534,846.48, 177,377,445.68 and 69,796,988.56 is: 96,319,495.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,534,846.48 : 177,377,445.68 = 69,796,988.56 : x
  2. Step 2: Convert to fraction form
    128,534,846.48/177,377,445.68 = 69,796,988.56/x
  3. Step 3: Cross multiply
    128,534,846.48x = 177,377,445.68 × 69,796,988.56
  4. Step 4: Simplify right side
    128,534,846.48x = 12,380,411,546,928,982
  5. Step 5: Solve for x
    x = 12,380,411,546,928,982/128,534,846.48
  6. Step 6: Final answer
    x = 96,319,495.34

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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.