Home / 309,771,113.40-464,656,670.10-172,021,606.20

Finding the Fourth Proportional to 309,771,113.40, 464,656,670.10 and 172,021,606.20

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Solution

The fourth proportional to 309,771,113.40, 464,656,670.10 and 172,021,606.20 is: 258,032,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,771,113.40 : 464,656,670.10 = 172,021,606.20 : x
  2. Step 2: Convert to fraction form
    309,771,113.40/464,656,670.10 = 172,021,606.20/x
  3. Step 3: Cross multiply
    309,771,113.40x = 464,656,670.10 × 172,021,606.20
  4. Step 4: Simplify right side
    309,771,113.40x = 79,930,986,722,145,520
  5. Step 5: Solve for x
    x = 79,930,986,722,145,520/309,771,113.40
  6. Step 6: Final answer
    x = 258,032,409.30

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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.