Home / 169,333,728.12-253,918,425.78-99,323,082.36

Finding the Fourth Proportional to 169,333,728.12, 253,918,425.78 and 99,323,082.36

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Solution

The fourth proportional to 169,333,728.12, 253,918,425.78 and 99,323,082.36 is: 148,936,428.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,333,728.12 : 253,918,425.78 = 99,323,082.36 : x
  2. Step 2: Convert to fraction form
    169,333,728.12/253,918,425.78 = 99,323,082.36/x
  3. Step 3: Cross multiply
    169,333,728.12x = 253,918,425.78 × 99,323,082.36
  4. Step 4: Simplify right side
    169,333,728.12x = 25,219,960,716,468,488
  5. Step 5: Solve for x
    x = 25,219,960,716,468,488/169,333,728.12
  6. Step 6: Final answer
    x = 148,936,428.65

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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.