Home / 72,821,988.33-100,495,825.31-39,784,377.30

Finding the Fourth Proportional to 72,821,988.33, 100,495,825.31 and 39,784,377.30

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Solution

The fourth proportional to 72,821,988.33, 100,495,825.31 and 39,784,377.30 is: 54,903,250.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,821,988.33 : 100,495,825.31 = 39,784,377.30 : x
  2. Step 2: Convert to fraction form
    72,821,988.33/100,495,825.31 = 39,784,377.30/x
  3. Step 3: Cross multiply
    72,821,988.33x = 100,495,825.31 × 39,784,377.30
  4. Step 4: Simplify right side
    72,821,988.33x = 3,998,163,830,705,450.50
  5. Step 5: Solve for x
    x = 3,998,163,830,705,450.50/72,821,988.33
  6. Step 6: Final answer
    x = 54,903,250.00

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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.