Home / 210,715,569.60-316,745,200.80-198,622,334.40

Finding the Fourth Proportional to 210,715,569.60, 316,745,200.80 and 198,622,334.40

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Solution

The fourth proportional to 210,715,569.60, 316,745,200.80 and 198,622,334.40 is: 298,566,789.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,715,569.60 : 316,745,200.80 = 198,622,334.40 : x
  2. Step 2: Convert to fraction form
    210,715,569.60/316,745,200.80 = 198,622,334.40/x
  3. Step 3: Cross multiply
    210,715,569.60x = 316,745,200.80 × 198,622,334.40
  4. Step 4: Simplify right side
    210,715,569.60x = 62,912,671,192,892,752
  5. Step 5: Solve for x
    x = 62,912,671,192,892,752/210,715,569.60
  6. Step 6: Final answer
    x = 298,566,789.88

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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.