Home / 72,003,881.83-99,365,618.48-38,964,127.39

Finding the Fourth Proportional to 72,003,881.83, 99,365,618.48 and 38,964,127.39

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Solution

The fourth proportional to 72,003,881.83, 99,365,618.48 and 38,964,127.39 is: 53,770,637.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,003,881.83 : 99,365,618.48 = 38,964,127.39 : x
  2. Step 2: Convert to fraction form
    72,003,881.83/99,365,618.48 = 38,964,127.39/x
  3. Step 3: Cross multiply
    72,003,881.83x = 99,365,618.48 × 38,964,127.39
  4. Step 4: Simplify right side
    72,003,881.83x = 3,871,694,616,640,858.50
  5. Step 5: Solve for x
    x = 3,871,694,616,640,858.50/72,003,881.83
  6. Step 6: Final answer
    x = 53,770,637.34

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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.