Home / 215,208,049.80-322,812,074.70-198,579,851.40

Finding the Fourth Proportional to 215,208,049.80, 322,812,074.70 and 198,579,851.40

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Solution

The fourth proportional to 215,208,049.80, 322,812,074.70 and 198,579,851.40 is: 297,869,777.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,208,049.80 : 322,812,074.70 = 198,579,851.40 : x
  2. Step 2: Convert to fraction form
    215,208,049.80/322,812,074.70 = 198,579,851.40/x
  3. Step 3: Cross multiply
    215,208,049.80x = 322,812,074.70 × 198,579,851.40
  4. Step 4: Simplify right side
    215,208,049.80x = 64,103,973,824,051,696
  5. Step 5: Solve for x
    x = 64,103,973,824,051,696/215,208,049.80
  6. Step 6: Final answer
    x = 297,869,777.10

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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.