Home / 61,265,863.20-91,772,823.60-42,118,240.80

Finding the Fourth Proportional to 61,265,863.20, 91,772,823.60 and 42,118,240.80

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Solution

The fourth proportional to 61,265,863.20, 91,772,823.60 and 42,118,240.80 is: 63,090,760.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,265,863.20 : 91,772,823.60 = 42,118,240.80 : x
  2. Step 2: Convert to fraction form
    61,265,863.20/91,772,823.60 = 42,118,240.80/x
  3. Step 3: Cross multiply
    61,265,863.20x = 91,772,823.60 × 42,118,240.80
  4. Step 4: Simplify right side
    61,265,863.20x = 3,865,309,883,280,722.50
  5. Step 5: Solve for x
    x = 3,865,309,883,280,722.50/61,265,863.20
  6. Step 6: Final answer
    x = 63,090,760.19

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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.