Home / 78,298,671.40-117,448,007.10-51,088,892.20

Finding the Fourth Proportional to 78,298,671.40, 117,448,007.10 and 51,088,892.20

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Solution

The fourth proportional to 78,298,671.40, 117,448,007.10 and 51,088,892.20 is: 76,633,338.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,298,671.40 : 117,448,007.10 = 51,088,892.20 : x
  2. Step 2: Convert to fraction form
    78,298,671.40/117,448,007.10 = 51,088,892.20/x
  3. Step 3: Cross multiply
    78,298,671.40x = 117,448,007.10 × 51,088,892.20
  4. Step 4: Simplify right side
    78,298,671.40x = 6,000,288,573,836,735
  5. Step 5: Solve for x
    x = 6,000,288,573,836,735/78,298,671.40
  6. Step 6: Final answer
    x = 76,633,338.30

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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.