Home / 142,703,999.10-214,055,998.65-99,657,278.10

Finding the Fourth Proportional to 142,703,999.10, 214,055,998.65 and 99,657,278.10

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Solution

The fourth proportional to 142,703,999.10, 214,055,998.65 and 99,657,278.10 is: 149,485,917.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,703,999.10 : 214,055,998.65 = 99,657,278.10 : x
  2. Step 2: Convert to fraction form
    142,703,999.10/214,055,998.65 = 99,657,278.10/x
  3. Step 3: Cross multiply
    142,703,999.10x = 214,055,998.65 × 99,657,278.10
  4. Step 4: Simplify right side
    142,703,999.10x = 21,332,238,186,436,272
  5. Step 5: Solve for x
    x = 21,332,238,186,436,272/142,703,999.10
  6. Step 6: Final answer
    x = 149,485,917.15

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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.