Home / 9,781,780.30-13,498,232.37-5,430,865.50

Finding the Fourth Proportional to 9,781,780.30, 13,498,232.37 and 5,430,865.50

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Solution

The fourth proportional to 9,781,780.30, 13,498,232.37 and 5,430,865.50 is: 7,494,247.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,781,780.30 : 13,498,232.37 = 5,430,865.50 : x
  2. Step 2: Convert to fraction form
    9,781,780.30/13,498,232.37 = 5,430,865.50/x
  3. Step 3: Cross multiply
    9,781,780.30x = 13,498,232.37 × 5,430,865.50
  4. Step 4: Simplify right side
    9,781,780.30x = 73,307,084,489,216.23
  5. Step 5: Solve for x
    x = 73,307,084,489,216.23/9,781,780.30
  6. Step 6: Final answer
    x = 7,494,247.70

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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.