Home / 12,458,829.60-18,688,244.40-7,650,928.80

Finding the Fourth Proportional to 12,458,829.60, 18,688,244.40 and 7,650,928.80

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Solution

The fourth proportional to 12,458,829.60, 18,688,244.40 and 7,650,928.80 is: 11,476,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458,829.60 : 18,688,244.40 = 7,650,928.80 : x
  2. Step 2: Convert to fraction form
    12,458,829.60/18,688,244.40 = 7,650,928.80/x
  3. Step 3: Cross multiply
    12,458,829.60x = 18,688,244.40 × 7,650,928.80
  4. Step 4: Simplify right side
    12,458,829.60x = 142,982,427,301,398.72
  5. Step 5: Solve for x
    x = 142,982,427,301,398.72/12,458,829.60
  6. Step 6: Final answer
    x = 11,476,393.20

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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.