Home / 78,415,409.60-117,623,114.40-49,788,454.40

Finding the Fourth Proportional to 78,415,409.60, 117,623,114.40 and 49,788,454.40

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Solution

The fourth proportional to 78,415,409.60, 117,623,114.40 and 49,788,454.40 is: 74,682,681.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,415,409.60 : 117,623,114.40 = 49,788,454.40 : x
  2. Step 2: Convert to fraction form
    78,415,409.60/117,623,114.40 = 49,788,454.40/x
  3. Step 3: Cross multiply
    78,415,409.60x = 117,623,114.40 × 49,788,454.40
  4. Step 4: Simplify right side
    78,415,409.60x = 5,856,273,067,690,383
  5. Step 5: Solve for x
    x = 5,856,273,067,690,383/78,415,409.60
  6. Step 6: Final answer
    x = 74,682,681.60

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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.