Home / 77,019,225.60-115,500,844.80-38,667,993.60

Finding the Fourth Proportional to 77,019,225.60, 115,500,844.80 and 38,667,993.60

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Solution

The fourth proportional to 77,019,225.60, 115,500,844.80 and 38,667,993.60 is: 57,987,936.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,019,225.60 : 115,500,844.80 = 38,667,993.60 : x
  2. Step 2: Convert to fraction form
    77,019,225.60/115,500,844.80 = 38,667,993.60/x
  3. Step 3: Cross multiply
    77,019,225.60x = 115,500,844.80 × 38,667,993.60
  4. Step 4: Simplify right side
    77,019,225.60x = 4,466,185,927,520,993.50
  5. Step 5: Solve for x
    x = 4,466,185,927,520,993.50/77,019,225.60
  6. Step 6: Final answer
    x = 57,987,936.03

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1.5x scale

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.