Home / 74,735,989.20-112,103,983.80-45,888,584.40

Finding the Fourth Proportional to 74,735,989.20, 112,103,983.80 and 45,888,584.40

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Solution

The fourth proportional to 74,735,989.20, 112,103,983.80 and 45,888,584.40 is: 68,832,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,735,989.20 : 112,103,983.80 = 45,888,584.40 : x
  2. Step 2: Convert to fraction form
    74,735,989.20/112,103,983.80 = 45,888,584.40/x
  3. Step 3: Cross multiply
    74,735,989.20x = 112,103,983.80 × 45,888,584.40
  4. Step 4: Simplify right side
    74,735,989.20x = 5,144,293,122,182,532
  5. Step 5: Solve for x
    x = 5,144,293,122,182,532/74,735,989.20
  6. Step 6: Final answer
    x = 68,832,876.60

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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.