Home / 72,462,124.26-99,997,969.23-39,422,363.58

Finding the Fourth Proportional to 72,462,124.26, 99,997,969.23 and 39,422,363.58

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Solution

The fourth proportional to 72,462,124.26, 99,997,969.23 and 39,422,363.58 is: 54,402,991.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,462,124.26 : 99,997,969.23 = 39,422,363.58 : x
  2. Step 2: Convert to fraction form
    72,462,124.26/99,997,969.23 = 39,422,363.58/x
  3. Step 3: Cross multiply
    72,462,124.26x = 99,997,969.23 × 39,422,363.58
  4. Step 4: Simplify right side
    72,462,124.26x = 3,942,156,300,246,712.50
  5. Step 5: Solve for x
    x = 3,942,156,300,246,712.50/72,462,124.26
  6. Step 6: Final answer
    x = 54,402,991.09

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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.