Home / 319,435,740.32-440,821,615.57-172,758,024.32

Finding the Fourth Proportional to 319,435,740.32, 440,821,615.57 and 172,758,024.32

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Solution

The fourth proportional to 319,435,740.32, 440,821,615.57 and 172,758,024.32 is: 238,406,232.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,435,740.32 : 440,821,615.57 = 172,758,024.32 : x
  2. Step 2: Convert to fraction form
    319,435,740.32/440,821,615.57 = 172,758,024.32/x
  3. Step 3: Cross multiply
    319,435,740.32x = 440,821,615.57 × 172,758,024.32
  4. Step 4: Simplify right side
    319,435,740.32x = 76,155,471,380,784,304
  5. Step 5: Solve for x
    x = 76,155,471,380,784,304/319,435,740.32
  6. Step 6: Final answer
    x = 238,406,232.52

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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.