Home / 72,867,456.80-100,556,846.15-39,827,686.80

Finding the Fourth Proportional to 72,867,456.80, 100,556,846.15 and 39,827,686.80

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Solution

The fourth proportional to 72,867,456.80, 100,556,846.15 and 39,827,686.80 is: 54,962,074.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,867,456.80 : 100,556,846.15 = 39,827,686.80 : x
  2. Step 2: Convert to fraction form
    72,867,456.80/100,556,846.15 = 39,827,686.80/x
  3. Step 3: Cross multiply
    72,867,456.80x = 100,556,846.15 × 39,827,686.80
  4. Step 4: Simplify right side
    72,867,456.80x = 4,004,946,574,235,935.50
  5. Step 5: Solve for x
    x = 4,004,946,574,235,935.50/72,867,456.80
  6. Step 6: Final answer
    x = 54,962,074.29

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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.