Home / 115,626,651.30-159,564,030.57-66,082,178.34

Finding the Fourth Proportional to 115,626,651.30, 159,564,030.57 and 66,082,178.34

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Solution

The fourth proportional to 115,626,651.30, 159,564,030.57 and 66,082,178.34 is: 91,192,978.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,626,651.30 : 159,564,030.57 = 66,082,178.34 : x
  2. Step 2: Convert to fraction form
    115,626,651.30/159,564,030.57 = 66,082,178.34/x
  3. Step 3: Cross multiply
    115,626,651.30x = 159,564,030.57 × 66,082,178.34
  4. Step 4: Simplify right side
    115,626,651.30x = 10,544,338,724,775,952
  5. Step 5: Solve for x
    x = 10,544,338,724,775,952/115,626,651.30
  6. Step 6: Final answer
    x = 91,192,978.49

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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.