Home / 28,146,838.50-38,842,374.69-15,923,695.50

Finding the Fourth Proportional to 28,146,838.50, 38,842,374.69 and 15,923,695.50

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Solution

The fourth proportional to 28,146,838.50, 38,842,374.69 and 15,923,695.50 is: 21,974,551.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,146,838.50 : 38,842,374.69 = 15,923,695.50 : x
  2. Step 2: Convert to fraction form
    28,146,838.50/38,842,374.69 = 15,923,695.50/x
  3. Step 3: Cross multiply
    28,146,838.50x = 38,842,374.69 × 15,923,695.50
  4. Step 4: Simplify right side
    28,146,838.50x = 618,514,147,060,466.88
  5. Step 5: Solve for x
    x = 618,514,147,060,466.88/28,146,838.50
  6. Step 6: Final answer
    x = 21,974,551.32

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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.