Home / 288,281,446.65-397,823,479.43-156,121,369.29

Finding the Fourth Proportional to 288,281,446.65, 397,823,479.43 and 156,121,369.29

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Solution

The fourth proportional to 288,281,446.65, 397,823,479.43 and 156,121,369.29 is: 215,444,826.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,281,446.65 : 397,823,479.43 = 156,121,369.29 : x
  2. Step 2: Convert to fraction form
    288,281,446.65/397,823,479.43 = 156,121,369.29/x
  3. Step 3: Cross multiply
    288,281,446.65x = 397,823,479.43 × 156,121,369.29
  4. Step 4: Simplify right side
    288,281,446.65x = 62,108,746,343,543,144
  5. Step 5: Solve for x
    x = 62,108,746,343,543,144/288,281,446.65
  6. Step 6: Final answer
    x = 215,444,826.80

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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.