Home / 28,324,780.65-42,487,106.17-12,140,237.61

Finding the Fourth Proportional to 28,324,780.65, 42,487,106.17 and 12,140,237.61

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Solution

The fourth proportional to 28,324,780.65, 42,487,106.17 and 12,140,237.61 is: 18,210,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324,780.65 : 42,487,106.17 = 12,140,237.61 : x
  2. Step 2: Convert to fraction form
    28,324,780.65/42,487,106.17 = 12,140,237.61/x
  3. Step 3: Cross multiply
    28,324,780.65x = 42,487,106.17 × 12,140,237.61
  4. Step 4: Simplify right side
    28,324,780.65x = 515,803,564,265,097.06
  5. Step 5: Solve for x
    x = 515,803,564,265,097.06/28,324,780.65
  6. Step 6: Final answer
    x = 18,210,328.64

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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.