Home / 138,014,227.28-190,425,663.38-84,355,307.48

Finding the Fourth Proportional to 138,014,227.28, 190,425,663.38 and 84,355,307.48

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Solution

The fourth proportional to 138,014,227.28, 190,425,663.38 and 84,355,307.48 is: 116,389,561.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,014,227.28 : 190,425,663.38 = 84,355,307.48 : x
  2. Step 2: Convert to fraction form
    138,014,227.28/190,425,663.38 = 84,355,307.48/x
  3. Step 3: Cross multiply
    138,014,227.28x = 190,425,663.38 × 84,355,307.48
  4. Step 4: Simplify right side
    138,014,227.28x = 16,063,415,387,189,828
  5. Step 5: Solve for x
    x = 16,063,415,387,189,828/138,014,227.28
  6. Step 6: Final answer
    x = 116,389,561.45

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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.