Home / 18,785,155.34-28,158,068.44-7,861,603.93

Finding the Fourth Proportional to 18,785,155.34, 28,158,068.44 and 7,861,603.93

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Solution

The fourth proportional to 18,785,155.34, 28,158,068.44 and 7,861,603.93 is: 11,784,176.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785,155.34 : 28,158,068.44 = 7,861,603.93 : x
  2. Step 2: Convert to fraction form
    18,785,155.34/28,158,068.44 = 7,861,603.93/x
  3. Step 3: Cross multiply
    18,785,155.34x = 28,158,068.44 × 7,861,603.93
  4. Step 4: Simplify right side
    18,785,155.34x = 221,367,581,509,112.97
  5. Step 5: Solve for x
    x = 221,367,581,509,112.97/18,785,155.34
  6. Step 6: Final answer
    x = 11,784,176.26

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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.