Home / 311,942,130.44-430,493,592.06-172,712,892.32

Finding the Fourth Proportional to 311,942,130.44, 430,493,592.06 and 172,712,892.32

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Solution

The fourth proportional to 311,942,130.44, 430,493,592.06 and 172,712,892.32 is: 238,351,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,942,130.44 : 430,493,592.06 = 172,712,892.32 : x
  2. Step 2: Convert to fraction form
    311,942,130.44/430,493,592.06 = 172,712,892.32/x
  3. Step 3: Cross multiply
    311,942,130.44x = 430,493,592.06 × 172,712,892.32
  4. Step 4: Simplify right side
    311,942,130.44x = 74,351,793,409,908,784
  5. Step 5: Solve for x
    x = 74,351,793,409,908,784/311,942,130.44
  6. Step 6: Final answer
    x = 238,351,239.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.