Home / 28,143,109.24-38,838,148.41-15,752,894.48

Finding the Fourth Proportional to 28,143,109.24, 38,838,148.41 and 15,752,894.48

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Solution

The fourth proportional to 28,143,109.24, 38,838,148.41 and 15,752,894.48 is: 21,739,362.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,143,109.24 : 38,838,148.41 = 15,752,894.48 : x
  2. Step 2: Convert to fraction form
    28,143,109.24/38,838,148.41 = 15,752,894.48/x
  3. Step 3: Cross multiply
    28,143,109.24x = 38,838,148.41 × 15,752,894.48
  4. Step 4: Simplify right side
    28,143,109.24x = 611,813,253,711,835.50
  5. Step 5: Solve for x
    x = 611,813,253,711,835.50/28,143,109.24
  6. Step 6: Final answer
    x = 21,739,362.50

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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.