Home / 278,835,551.13-384,790,932.74-153,385,045.76

Finding the Fourth Proportional to 278,835,551.13, 384,790,932.74 and 153,385,045.76

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Solution

The fourth proportional to 278,835,551.13, 384,790,932.74 and 153,385,045.76 is: 211,670,192.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,835,551.13 : 384,790,932.74 = 153,385,045.76 : x
  2. Step 2: Convert to fraction form
    278,835,551.13/384,790,932.74 = 153,385,045.76/x
  3. Step 3: Cross multiply
    278,835,551.13x = 384,790,932.74 × 153,385,045.76
  4. Step 4: Simplify right side
    278,835,551.13x = 59,021,174,825,540,896
  5. Step 5: Solve for x
    x = 59,021,174,825,540,896/278,835,551.13
  6. Step 6: Final answer
    x = 211,670,192.65

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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.