Home / 201,431,319.40-302,146,979.10-198,072,087.40

Finding the Fourth Proportional to 201,431,319.40, 302,146,979.10 and 198,072,087.40

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Solution

The fourth proportional to 201,431,319.40, 302,146,979.10 and 198,072,087.40 is: 297,108,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,431,319.40 : 302,146,979.10 = 198,072,087.40 : x
  2. Step 2: Convert to fraction form
    201,431,319.40/302,146,979.10 = 198,072,087.40/x
  3. Step 3: Cross multiply
    201,431,319.40x = 302,146,979.10 × 198,072,087.40
  4. Step 4: Simplify right side
    201,431,319.40x = 59,846,882,851,941,176
  5. Step 5: Solve for x
    x = 59,846,882,851,941,176/201,431,319.40
  6. Step 6: Final answer
    x = 297,108,131.10

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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.