Home / 12,429,069.60-18,612,111.60-9,909,645.60

Finding the Fourth Proportional to 12,429,069.60, 18,612,111.60 and 9,909,645.60

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Solution

The fourth proportional to 12,429,069.60, 18,612,111.60 and 9,909,645.60 is: 14,839,359.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429,069.60 : 18,612,111.60 = 9,909,645.60 : x
  2. Step 2: Convert to fraction form
    12,429,069.60/18,612,111.60 = 9,909,645.60/x
  3. Step 3: Cross multiply
    12,429,069.60x = 18,612,111.60 × 9,909,645.60
  4. Step 4: Simplify right side
    12,429,069.60x = 184,439,429,823,648.97
  5. Step 5: Solve for x
    x = 184,439,429,823,648.97/12,429,069.60
  6. Step 6: Final answer
    x = 14,839,359.32

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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.