Home / 199,710,122.40-299,352,607.20-76,840,963.20

Finding the Fourth Proportional to 199,710,122.40, 299,352,607.20 and 76,840,963.20

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Solution

The fourth proportional to 199,710,122.40, 299,352,607.20 and 76,840,963.20 is: 115,179,653.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,710,122.40 : 299,352,607.20 = 76,840,963.20 : x
  2. Step 2: Convert to fraction form
    199,710,122.40/299,352,607.20 = 76,840,963.20/x
  3. Step 3: Cross multiply
    199,710,122.40x = 299,352,607.20 × 76,840,963.20
  4. Step 4: Simplify right side
    199,710,122.40x = 23,002,542,673,679,256
  5. Step 5: Solve for x
    x = 23,002,542,673,679,256/199,710,122.40
  6. Step 6: Final answer
    x = 115,179,653.38

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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.