Home / 5,190,077.71-7,785,328.65-1,780,708.73

Finding the Fourth Proportional to 5,190,077.71, 7,785,328.65 and 1,780,708.73

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Solution

The fourth proportional to 5,190,077.71, 7,785,328.65 and 1,780,708.73 is: 2,671,135.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190,077.71 : 7,785,328.65 = 1,780,708.73 : x
  2. Step 2: Convert to fraction form
    5,190,077.71/7,785,328.65 = 1,780,708.73/x
  3. Step 3: Cross multiply
    5,190,077.71x = 7,785,328.65 × 1,780,708.73
  4. Step 4: Simplify right side
    5,190,077.71x = 13,863,402,692,974.12
  5. Step 5: Solve for x
    x = 13,863,402,692,974.12/5,190,077.71
  6. Step 6: Final answer
    x = 2,671,135.86

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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.