Home / 312,750,680.32-431,596,004.22-173,521,109.92

Finding the Fourth Proportional to 312,750,680.32, 431,596,004.22 and 173,521,109.92

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Solution

The fourth proportional to 312,750,680.32, 431,596,004.22 and 173,521,109.92 is: 239,459,167.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,750,680.32 : 431,596,004.22 = 173,521,109.92 : x
  2. Step 2: Convert to fraction form
    312,750,680.32/431,596,004.22 = 173,521,109.92/x
  3. Step 3: Cross multiply
    312,750,680.32x = 431,596,004.22 × 173,521,109.92
  4. Step 4: Simplify right side
    312,750,680.32x = 74,891,017,689,291,408
  5. Step 5: Solve for x
    x = 74,891,017,689,291,408/312,750,680.32
  6. Step 6: Final answer
    x = 239,459,167.96

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1.5x scale

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.