Home / 289,721,837.10-434,582,755.65-221,697,389.10

Finding the Fourth Proportional to 289,721,837.10, 434,582,755.65 and 221,697,389.10

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Solution

The fourth proportional to 289,721,837.10, 434,582,755.65 and 221,697,389.10 is: 332,546,083.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,721,837.10 : 434,582,755.65 = 221,697,389.10 : x
  2. Step 2: Convert to fraction form
    289,721,837.10/434,582,755.65 = 221,697,389.10/x
  3. Step 3: Cross multiply
    289,721,837.10x = 434,582,755.65 × 221,697,389.10
  4. Step 4: Simplify right side
    289,721,837.10x = 96,345,862,275,488,272
  5. Step 5: Solve for x
    x = 96,345,862,275,488,272/289,721,837.10
  6. Step 6: Final answer
    x = 332,546,083.65

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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.