Home / 213,205,466.70-319,808,200.05-76,890,850.20

Finding the Fourth Proportional to 213,205,466.70, 319,808,200.05 and 76,890,850.20

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Solution

The fourth proportional to 213,205,466.70, 319,808,200.05 and 76,890,850.20 is: 115,336,275.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,205,466.70 : 319,808,200.05 = 76,890,850.20 : x
  2. Step 2: Convert to fraction form
    213,205,466.70/319,808,200.05 = 76,890,850.20/x
  3. Step 3: Cross multiply
    213,205,466.70x = 319,808,200.05 × 76,890,850.20
  4. Step 4: Simplify right side
    213,205,466.70x = 24,590,324,402,776,184
  5. Step 5: Solve for x
    x = 24,590,324,402,776,184/213,205,466.70
  6. Step 6: Final answer
    x = 115,336,275.30

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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.