Home / 297,229,643.60-445,844,465.40-78,913,680.80

Finding the Fourth Proportional to 297,229,643.60, 445,844,465.40 and 78,913,680.80

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Solution

The fourth proportional to 297,229,643.60, 445,844,465.40 and 78,913,680.80 is: 118,370,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,229,643.60 : 445,844,465.40 = 78,913,680.80 : x
  2. Step 2: Convert to fraction form
    297,229,643.60/445,844,465.40 = 78,913,680.80/x
  3. Step 3: Cross multiply
    297,229,643.60x = 445,844,465.40 × 78,913,680.80
  4. Step 4: Simplify right side
    297,229,643.60x = 35,183,227,829,022,240
  5. Step 5: Solve for x
    x = 35,183,227,829,022,240/297,229,643.60
  6. Step 6: Final answer
    x = 118,370,521.20

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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.