Home / 142,154,998.30-196,204,205.91-97,561,971.10

Finding the Fourth Proportional to 142,154,998.30, 196,204,205.91 and 97,561,971.10

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Solution

The fourth proportional to 142,154,998.30, 196,204,205.91 and 97,561,971.10 is: 134,656,320.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,154,998.30 : 196,204,205.91 = 97,561,971.10 : x
  2. Step 2: Convert to fraction form
    142,154,998.30/196,204,205.91 = 97,561,971.10/x
  3. Step 3: Cross multiply
    142,154,998.30x = 196,204,205.91 × 97,561,971.10
  4. Step 4: Simplify right side
    142,154,998.30x = 19,142,069,066,689,868
  5. Step 5: Solve for x
    x = 19,142,069,066,689,868/142,154,998.30
  6. Step 6: Final answer
    x = 134,656,320.89

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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.