Home / 69,668,343.78-96,144,782.10-38,308,781.28

Finding the Fourth Proportional to 69,668,343.78, 96,144,782.10 and 38,308,781.28

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Solution

The fourth proportional to 69,668,343.78, 96,144,782.10 and 38,308,781.28 is: 52,867,475.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,668,343.78 : 96,144,782.10 = 38,308,781.28 : x
  2. Step 2: Convert to fraction form
    69,668,343.78/96,144,782.10 = 38,308,781.28/x
  3. Step 3: Cross multiply
    69,668,343.78x = 96,144,782.10 × 38,308,781.28
  4. Step 4: Simplify right side
    69,668,343.78x = 3,683,189,428,682,159
  5. Step 5: Solve for x
    x = 3,683,189,428,682,159/69,668,343.78
  6. Step 6: Final answer
    x = 52,867,475.08

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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.