Home / 287,712,952.70-431,569,429.05-195,879,947.90

Finding the Fourth Proportional to 287,712,952.70, 431,569,429.05 and 195,879,947.90

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Solution

The fourth proportional to 287,712,952.70, 431,569,429.05 and 195,879,947.90 is: 293,819,921.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,712,952.70 : 431,569,429.05 = 195,879,947.90 : x
  2. Step 2: Convert to fraction form
    287,712,952.70/431,569,429.05 = 195,879,947.90/x
  3. Step 3: Cross multiply
    287,712,952.70x = 431,569,429.05 × 195,879,947.90
  4. Step 4: Simplify right side
    287,712,952.70x = 84,535,797,277,546,752
  5. Step 5: Solve for x
    x = 84,535,797,277,546,752/287,712,952.70
  6. Step 6: Final answer
    x = 293,819,921.85

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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.