Home / 205,869,882.96-308,814,756.16-67,692,430.90

Finding the Fourth Proportional to 205,869,882.96, 308,814,756.16 and 67,692,430.90

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Solution

The fourth proportional to 205,869,882.96, 308,814,756.16 and 67,692,430.90 is: 101,541,912.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,869,882.96 : 308,814,756.16 = 67,692,430.90 : x
  2. Step 2: Convert to fraction form
    205,869,882.96/308,814,756.16 = 67,692,430.90/x
  3. Step 3: Cross multiply
    205,869,882.96x = 308,814,756.16 × 67,692,430.90
  4. Step 4: Simplify right side
    205,869,882.96x = 20,904,421,542,261,152
  5. Step 5: Solve for x
    x = 20,904,421,542,261,152/205,869,882.96
  6. Step 6: Final answer
    x = 101,541,912.02

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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.