Home / 310,992,987.56-429,167,497.41-169,864,178.61

Finding the Fourth Proportional to 310,992,987.56, 429,167,497.41 and 169,864,178.61

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Solution

The fourth proportional to 310,992,987.56, 429,167,497.41 and 169,864,178.61 is: 234,411,023.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,992,987.56 : 429,167,497.41 = 169,864,178.61 : x
  2. Step 2: Convert to fraction form
    310,992,987.56/429,167,497.41 = 169,864,178.61/x
  3. Step 3: Cross multiply
    310,992,987.56x = 429,167,497.41 × 169,864,178.61
  4. Step 4: Simplify right side
    310,992,987.56x = 72,900,184,431,412,576
  5. Step 5: Solve for x
    x = 72,900,184,431,412,576/310,992,987.56
  6. Step 6: Final answer
    x = 234,411,023.23

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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.