Home / 100,504,500.99-138,712,665.69-83,732,643.42

Finding the Fourth Proportional to 100,504,500.99, 138,712,665.69 and 83,732,643.42

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Solution

The fourth proportional to 100,504,500.99, 138,712,665.69 and 83,732,643.42 is: 115,564,756.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,504,500.99 : 138,712,665.69 = 83,732,643.42 : x
  2. Step 2: Convert to fraction form
    100,504,500.99/138,712,665.69 = 83,732,643.42/x
  3. Step 3: Cross multiply
    100,504,500.99x = 138,712,665.69 × 83,732,643.42
  4. Step 4: Simplify right side
    100,504,500.99x = 11,614,778,174,058,438
  5. Step 5: Solve for x
    x = 11,614,778,174,058,438/100,504,500.99
  6. Step 6: Final answer
    x = 115,564,756.40

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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.