Home / 78,624,088.20-117,936,132.30-40,360,336.20

Finding the Fourth Proportional to 78,624,088.20, 117,936,132.30 and 40,360,336.20

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Solution

The fourth proportional to 78,624,088.20, 117,936,132.30 and 40,360,336.20 is: 60,540,504.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,624,088.20 : 117,936,132.30 = 40,360,336.20 : x
  2. Step 2: Convert to fraction form
    78,624,088.20/117,936,132.30 = 40,360,336.20/x
  3. Step 3: Cross multiply
    78,624,088.20x = 117,936,132.30 × 40,360,336.20
  4. Step 4: Simplify right side
    78,624,088.20x = 4,759,941,949,755,679
  5. Step 5: Solve for x
    x = 4,759,941,949,755,679/78,624,088.20
  6. Step 6: Final answer
    x = 60,540,504.30

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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.