Home / 289,721,906.10-434,582,859.15-221,697,458.10

Finding the Fourth Proportional to 289,721,906.10, 434,582,859.15 and 221,697,458.10

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Solution

The fourth proportional to 289,721,906.10, 434,582,859.15 and 221,697,458.10 is: 332,546,187.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,721,906.10 : 434,582,859.15 = 221,697,458.10 : x
  2. Step 2: Convert to fraction form
    289,721,906.10/434,582,859.15 = 221,697,458.10/x
  3. Step 3: Cross multiply
    289,721,906.10x = 434,582,859.15 × 221,697,458.10
  4. Step 4: Simplify right side
    289,721,906.10x = 96,345,915,207,385,312
  5. Step 5: Solve for x
    x = 96,345,915,207,385,312/289,721,906.10
  6. Step 6: Final answer
    x = 332,546,187.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.