Home / 131,690,919.02-181,720,223.78-72,942,607.60

Finding the Fourth Proportional to 131,690,919.02, 181,720,223.78 and 72,942,607.60

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Solution

The fourth proportional to 131,690,919.02, 181,720,223.78 and 72,942,607.60 is: 100,653,462.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,690,919.02 : 181,720,223.78 = 72,942,607.60 : x
  2. Step 2: Convert to fraction form
    131,690,919.02/181,720,223.78 = 72,942,607.60/x
  3. Step 3: Cross multiply
    131,690,919.02x = 181,720,223.78 × 72,942,607.60
  4. Step 4: Simplify right side
    131,690,919.02x = 13,255,146,976,168,728
  5. Step 5: Solve for x
    x = 13,255,146,976,168,728/131,690,919.02
  6. Step 6: Final answer
    x = 100,653,462.48

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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.