Home / 18,728,612.90-28,092,955.47-7,219,499.94

Finding the Fourth Proportional to 18,728,612.90, 28,092,955.47 and 7,219,499.94

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Solution

The fourth proportional to 18,728,612.90, 28,092,955.47 and 7,219,499.94 is: 10,829,263.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728,612.90 : 28,092,955.47 = 7,219,499.94 : x
  2. Step 2: Convert to fraction form
    18,728,612.90/28,092,955.47 = 7,219,499.94/x
  3. Step 3: Cross multiply
    18,728,612.90x = 28,092,955.47 × 7,219,499.94
  4. Step 4: Simplify right side
    18,728,612.90x = 202,817,090,330,087.69
  5. Step 5: Solve for x
    x = 202,817,090,330,087.69/18,728,612.90
  6. Step 6: Final answer
    x = 10,829,263.83

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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.