Home / 266,210,069.28-399,323,238.75-91,330,650.11

Finding the Fourth Proportional to 266,210,069.28, 399,323,238.75 and 91,330,650.11

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Solution

The fourth proportional to 266,210,069.28, 399,323,238.75 and 91,330,650.11 is: 136,998,766.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,210,069.28 : 399,323,238.75 = 91,330,650.11 : x
  2. Step 2: Convert to fraction form
    266,210,069.28/399,323,238.75 = 91,330,650.11/x
  3. Step 3: Cross multiply
    266,210,069.28x = 399,323,238.75 × 91,330,650.11
  4. Step 4: Simplify right side
    266,210,069.28x = 36,470,450,997,071,632
  5. Step 5: Solve for x
    x = 36,470,450,997,071,632/266,210,069.28
  6. Step 6: Final answer
    x = 136,998,766.03

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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.