Home / 278,673,295.59-384,579,018.72-153,235,045.62

Finding the Fourth Proportional to 278,673,295.59, 384,579,018.72 and 153,235,045.62

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Solution

The fourth proportional to 278,673,295.59, 384,579,018.72 and 153,235,045.62 is: 211,469,790.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,673,295.59 : 384,579,018.72 = 153,235,045.62 : x
  2. Step 2: Convert to fraction form
    278,673,295.59/384,579,018.72 = 153,235,045.62/x
  3. Step 3: Cross multiply
    278,673,295.59x = 384,579,018.72 × 153,235,045.62
  4. Step 4: Simplify right side
    278,673,295.59x = 58,930,983,478,054,040
  5. Step 5: Solve for x
    x = 58,930,983,478,054,040/278,673,295.59
  6. Step 6: Final answer
    x = 211,469,790.65

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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.