Home / 28,545,510.69-39,392,842.76-15,492,769.61

Finding the Fourth Proportional to 28,545,510.69, 39,392,842.76 and 15,492,769.61

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Solution

The fourth proportional to 28,545,510.69, 39,392,842.76 and 15,492,769.61 is: 21,380,042.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545,510.69 : 39,392,842.76 = 15,492,769.61 : x
  2. Step 2: Convert to fraction form
    28,545,510.69/39,392,842.76 = 15,492,769.61/x
  3. Step 3: Cross multiply
    28,545,510.69x = 39,392,842.76 × 15,492,769.61
  4. Step 4: Simplify right side
    28,545,510.69x = 610,304,237,005,404.25
  5. Step 5: Solve for x
    x = 610,304,237,005,404.25/28,545,510.69
  6. Step 6: Final answer
    x = 21,380,042.68

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1.5x scale

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.