Home / 77,263,656.40-115,909,481.40-38,828,443.60

Finding the Fourth Proportional to 77,263,656.40, 115,909,481.40 and 38,828,443.60

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Solution

The fourth proportional to 77,263,656.40, 115,909,481.40 and 38,828,443.60 is: 58,249,699.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,263,656.40 : 115,909,481.40 = 38,828,443.60 : x
  2. Step 2: Convert to fraction form
    77,263,656.40/115,909,481.40 = 38,828,443.60/x
  3. Step 3: Cross multiply
    77,263,656.40x = 115,909,481.40 × 38,828,443.60
  4. Step 4: Simplify right side
    77,263,656.40x = 4,500,584,761,245,149.50
  5. Step 5: Solve for x
    x = 4,500,584,761,245,149.50/77,263,656.40
  6. Step 6: Final answer
    x = 58,249,699.42

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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.