Home / 49,818,478.85-68,740,985.75-28,905,717.21

Finding the Fourth Proportional to 49,818,478.85, 68,740,985.75 and 28,905,717.21

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Solution

The fourth proportional to 49,818,478.85, 68,740,985.75 and 28,905,717.21 is: 39,884,949.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,818,478.85 : 68,740,985.75 = 28,905,717.21 : x
  2. Step 2: Convert to fraction form
    49,818,478.85/68,740,985.75 = 28,905,717.21/x
  3. Step 3: Cross multiply
    49,818,478.85x = 68,740,985.75 × 28,905,717.21
  4. Step 4: Simplify right side
    49,818,478.85x = 1,987,007,494,423,832.75
  5. Step 5: Solve for x
    x = 1,987,007,494,423,832.75/49,818,478.85
  6. Step 6: Final answer
    x = 39,884,949.13

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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.