Home / 278,337,979.35-384,083,542.89-152,883,691.83

Finding the Fourth Proportional to 278,337,979.35, 384,083,542.89 and 152,883,691.83

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Solution

The fourth proportional to 278,337,979.35, 384,083,542.89 and 152,883,691.83 is: 210,966,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,337,979.35 : 384,083,542.89 = 152,883,691.83 : x
  2. Step 2: Convert to fraction form
    278,337,979.35/384,083,542.89 = 152,883,691.83/x
  3. Step 3: Cross multiply
    278,337,979.35x = 384,083,542.89 × 152,883,691.83
  4. Step 4: Simplify right side
    278,337,979.35x = 58,720,110,008,169,352
  5. Step 5: Solve for x
    x = 58,720,110,008,169,352/278,337,979.35
  6. Step 6: Final answer
    x = 210,966,933.60

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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.