Home / 72,412,487.39-99,928,481.02-53,910,368.98

Finding the Fourth Proportional to 72,412,487.39, 99,928,481.02 and 53,910,368.98

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Solution

The fourth proportional to 72,412,487.39, 99,928,481.02 and 53,910,368.98 is: 74,395,749.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,412,487.39 : 99,928,481.02 = 53,910,368.98 : x
  2. Step 2: Convert to fraction form
    72,412,487.39/99,928,481.02 = 53,910,368.98/x
  3. Step 3: Cross multiply
    72,412,487.39x = 99,928,481.02 × 53,910,368.98
  4. Step 4: Simplify right side
    72,412,487.39x = 5,387,181,283,014,529
  5. Step 5: Solve for x
    x = 5,387,181,283,014,529/72,412,487.39
  6. Step 6: Final answer
    x = 74,395,749.64

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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.