Home / 278,339,355.56-384,085,910.40-160,872,294.12

Finding the Fourth Proportional to 278,339,355.56, 384,085,910.40 and 160,872,294.12

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Solution

The fourth proportional to 278,339,355.56, 384,085,910.40 and 160,872,294.12 is: 221,990,819.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,339,355.56 : 384,085,910.40 = 160,872,294.12 : x
  2. Step 2: Convert to fraction form
    278,339,355.56/384,085,910.40 = 160,872,294.12/x
  3. Step 3: Cross multiply
    278,339,355.56x = 384,085,910.40 × 160,872,294.12
  4. Step 4: Simplify right side
    278,339,355.56x = 61,788,781,545,216,768
  5. Step 5: Solve for x
    x = 61,788,781,545,216,768/278,339,355.56
  6. Step 6: Final answer
    x = 221,990,819.16

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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.