Home / 289,721,411.10-434,582,116.65-221,696,963.10

Finding the Fourth Proportional to 289,721,411.10, 434,582,116.65 and 221,696,963.10

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Solution

The fourth proportional to 289,721,411.10, 434,582,116.65 and 221,696,963.10 is: 332,545,444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,721,411.10 : 434,582,116.65 = 221,696,963.10 : x
  2. Step 2: Convert to fraction form
    289,721,411.10/434,582,116.65 = 221,696,963.10/x
  3. Step 3: Cross multiply
    289,721,411.10x = 434,582,116.65 × 221,696,963.10
  4. Step 4: Simplify right side
    289,721,411.10x = 96,345,535,478,874,944
  5. Step 5: Solve for x
    x = 96,345,535,478,874,944/289,721,411.10
  6. Step 6: Final answer
    x = 332,545,444.65

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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.