Home / 289,720,903.10-434,581,354.65-221,696,455.10

Finding the Fourth Proportional to 289,720,903.10, 434,581,354.65 and 221,696,455.10

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Solution

The fourth proportional to 289,720,903.10, 434,581,354.65 and 221,696,455.10 is: 332,544,682.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,720,903.10 : 434,581,354.65 = 221,696,455.10 : x
  2. Step 2: Convert to fraction form
    289,720,903.10/434,581,354.65 = 221,696,455.10/x
  3. Step 3: Cross multiply
    289,720,903.10x = 434,581,354.65 × 221,696,455.10
  4. Step 4: Simplify right side
    289,720,903.10x = 96,345,145,778,460,896
  5. Step 5: Solve for x
    x = 96,345,145,778,460,896/289,720,903.10
  6. Step 6: Final answer
    x = 332,544,682.65

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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.