Home / 72,865,984.86-100,552,311.36-39,825,966.20

Finding the Fourth Proportional to 72,865,984.86, 100,552,311.36 and 39,825,966.20

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Solution

The fourth proportional to 72,865,984.86, 100,552,311.36 and 39,825,966.20 is: 54,958,331.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,865,984.86 : 100,552,311.36 = 39,825,966.20 : x
  2. Step 2: Convert to fraction form
    72,865,984.86/100,552,311.36 = 39,825,966.20/x
  3. Step 3: Cross multiply
    72,865,984.86x = 100,552,311.36 × 39,825,966.20
  4. Step 4: Simplify right side
    72,865,984.86x = 4,004,592,953,052,474.50
  5. Step 5: Solve for x
    x = 4,004,592,953,052,474.50/72,865,984.86
  6. Step 6: Final answer
    x = 54,958,331.53

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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.