Home / 10,422,046.60-15,633,069.90-8,742,430.60

Finding the Fourth Proportional to 10,422,046.60, 15,633,069.90 and 8,742,430.60

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Solution

The fourth proportional to 10,422,046.60, 15,633,069.90 and 8,742,430.60 is: 13,113,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422,046.60 : 15,633,069.90 = 8,742,430.60 : x
  2. Step 2: Convert to fraction form
    10,422,046.60/15,633,069.90 = 8,742,430.60/x
  3. Step 3: Cross multiply
    10,422,046.60x = 15,633,069.90 × 8,742,430.60
  4. Step 4: Simplify right side
    10,422,046.60x = 136,671,028,665,698.94
  5. Step 5: Solve for x
    x = 136,671,028,665,698.94/10,422,046.60
  6. Step 6: Final answer
    x = 13,113,645.90

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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.