Home / 72,834,354.48-100,510,220.16-39,793,892.56

Finding the Fourth Proportional to 72,834,354.48, 100,510,220.16 and 39,793,892.56

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Solution

The fourth proportional to 72,834,354.48, 100,510,220.16 and 39,793,892.56 is: 54,914,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,834,354.48 : 100,510,220.16 = 39,793,892.56 : x
  2. Step 2: Convert to fraction form
    72,834,354.48/100,510,220.16 = 39,793,892.56/x
  3. Step 3: Cross multiply
    72,834,354.48x = 100,510,220.16 × 39,793,892.56
  4. Step 4: Simplify right side
    72,834,354.48x = 3,999,692,902,228,986
  5. Step 5: Solve for x
    x = 3,999,692,902,228,986/72,834,354.48
  6. Step 6: Final answer
    x = 54,914,922.10

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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.