Home / 72,301,427.34-99,775,607.04-39,261,381.36

Finding the Fourth Proportional to 72,301,427.34, 99,775,607.04 and 39,261,381.36

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Solution

The fourth proportional to 72,301,427.34, 99,775,607.04 and 39,261,381.36 is: 54,180,509.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,301,427.34 : 99,775,607.04 = 39,261,381.36 : x
  2. Step 2: Convert to fraction form
    72,301,427.34/99,775,607.04 = 39,261,381.36/x
  3. Step 3: Cross multiply
    72,301,427.34x = 99,775,607.04 × 39,261,381.36
  4. Step 4: Simplify right side
    72,301,427.34x = 3,917,328,158,422,941
  5. Step 5: Solve for x
    x = 3,917,328,158,422,941/72,301,427.34
  6. Step 6: Final answer
    x = 54,180,509.33

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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.