Home / 312,140,970.24-430,748,902.08-172,911,301.44

Finding the Fourth Proportional to 312,140,970.24, 430,748,902.08 and 172,911,301.44

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Solution

The fourth proportional to 312,140,970.24, 430,748,902.08 and 172,911,301.44 is: 238,614,473.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,140,970.24 : 430,748,902.08 = 172,911,301.44 : x
  2. Step 2: Convert to fraction form
    312,140,970.24/430,748,902.08 = 172,911,301.44/x
  3. Step 3: Cross multiply
    312,140,970.24x = 430,748,902.08 × 172,911,301.44
  4. Step 4: Simplify right side
    312,140,970.24x = 74,481,353,252,503,920
  5. Step 5: Solve for x
    x = 74,481,353,252,503,920/312,140,970.24
  6. Step 6: Final answer
    x = 238,614,473.44

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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.