Home / 140,462,920.80-210,610,400.40-72,438,472.80

Finding the Fourth Proportional to 140,462,920.80, 210,610,400.40 and 72,438,472.80

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Solution

The fourth proportional to 140,462,920.80, 210,610,400.40 and 72,438,472.80 is: 108,614,399.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,462,920.80 : 210,610,400.40 = 72,438,472.80 : x
  2. Step 2: Convert to fraction form
    140,462,920.80/210,610,400.40 = 72,438,472.80/x
  3. Step 3: Cross multiply
    140,462,920.80x = 210,610,400.40 × 72,438,472.80
  4. Step 4: Simplify right side
    140,462,920.80x = 15,256,295,760,772,508
  5. Step 5: Solve for x
    x = 15,256,295,760,772,508/140,462,920.80
  6. Step 6: Final answer
    x = 108,614,399.26

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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.