Home / 72,885,171.90-109,355,369.94-43,759,350.66

Finding the Fourth Proportional to 72,885,171.90, 109,355,369.94 and 43,759,350.66

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Solution

The fourth proportional to 72,885,171.90, 109,355,369.94 and 43,759,350.66 is: 65,655,603.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,885,171.90 : 109,355,369.94 = 43,759,350.66 : x
  2. Step 2: Convert to fraction form
    72,885,171.90/109,355,369.94 = 43,759,350.66/x
  3. Step 3: Cross multiply
    72,885,171.90x = 109,355,369.94 × 43,759,350.66
  4. Step 4: Simplify right side
    72,885,171.90x = 4,785,319,979,758,483
  5. Step 5: Solve for x
    x = 4,785,319,979,758,483/72,885,171.90
  6. Step 6: Final answer
    x = 65,655,603.95

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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.