Home / 78,713,404.20-118,092,224.70-38,325,205.80

Finding the Fourth Proportional to 78,713,404.20, 118,092,224.70 and 38,325,205.80

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Solution

The fourth proportional to 78,713,404.20, 118,092,224.70 and 38,325,205.80 is: 57,498,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,713,404.20 : 118,092,224.70 = 38,325,205.80 : x
  2. Step 2: Convert to fraction form
    78,713,404.20/118,092,224.70 = 38,325,205.80/x
  3. Step 3: Cross multiply
    78,713,404.20x = 118,092,224.70 × 38,325,205.80
  4. Step 4: Simplify right side
    78,713,404.20x = 4,525,908,815,007,343
  5. Step 5: Solve for x
    x = 4,525,908,815,007,343/78,713,404.20
  6. Step 6: Final answer
    x = 57,498,578.05

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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.