Home / 72,885,168.90-109,355,365.44-43,759,347.66

Finding the Fourth Proportional to 72,885,168.90, 109,355,365.44 and 43,759,347.66

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Solution

The fourth proportional to 72,885,168.90, 109,355,365.44 and 43,759,347.66 is: 65,655,599.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,885,168.90 : 109,355,365.44 = 43,759,347.66 : x
  2. Step 2: Convert to fraction form
    72,885,168.90/109,355,365.44 = 43,759,347.66/x
  3. Step 3: Cross multiply
    72,885,168.90x = 109,355,365.44 × 43,759,347.66
  4. Step 4: Simplify right side
    72,885,168.90x = 4,785,319,454,775,308
  5. Step 5: Solve for x
    x = 4,785,319,454,775,308/72,885,168.90
  6. Step 6: Final answer
    x = 65,655,599.44

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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.