Home / 31,474,162.40-47,211,243.60-18,688,085.60

Finding the Fourth Proportional to 31,474,162.40, 47,211,243.60 and 18,688,085.60

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Solution

The fourth proportional to 31,474,162.40, 47,211,243.60 and 18,688,085.60 is: 28,032,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,474,162.40 : 47,211,243.60 = 18,688,085.60 : x
  2. Step 2: Convert to fraction form
    31,474,162.40/47,211,243.60 = 18,688,085.60/x
  3. Step 3: Cross multiply
    31,474,162.40x = 47,211,243.60 × 18,688,085.60
  4. Step 4: Simplify right side
    31,474,162.40x = 882,287,761,679,252.25
  5. Step 5: Solve for x
    x = 882,287,761,679,252.25/31,474,162.40
  6. Step 6: Final answer
    x = 28,032,128.40

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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.