Home / 77,212,729.08-115,818,995.70-19,705,001.52

Finding the Fourth Proportional to 77,212,729.08, 115,818,995.70 and 19,705,001.52

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Solution

The fourth proportional to 77,212,729.08, 115,818,995.70 and 19,705,001.52 is: 29,557,477.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,212,729.08 : 115,818,995.70 = 19,705,001.52 : x
  2. Step 2: Convert to fraction form
    77,212,729.08/115,818,995.70 = 19,705,001.52/x
  3. Step 3: Cross multiply
    77,212,729.08x = 115,818,995.70 × 19,705,001.52
  4. Step 4: Simplify right side
    77,212,729.08x = 2,282,213,486,313,373.50
  5. Step 5: Solve for x
    x = 2,282,213,486,313,373.50/77,212,729.08
  6. Step 6: Final answer
    x = 29,557,477.29

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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.