Home / 77,292,187.20-115,938,280.80-73,974,945.60

Finding the Fourth Proportional to 77,292,187.20, 115,938,280.80 and 73,974,945.60

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Solution

The fourth proportional to 77,292,187.20, 115,938,280.80 and 73,974,945.60 is: 110,962,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,292,187.20 : 115,938,280.80 = 73,974,945.60 : x
  2. Step 2: Convert to fraction form
    77,292,187.20/115,938,280.80 = 73,974,945.60/x
  3. Step 3: Cross multiply
    77,292,187.20x = 115,938,280.80 × 73,974,945.60
  4. Step 4: Simplify right side
    77,292,187.20x = 8,576,528,015,137,524
  5. Step 5: Solve for x
    x = 8,576,528,015,137,524/77,292,187.20
  6. Step 6: Final answer
    x = 110,962,418.40

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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.