Home / 315,576,035.20-473,364,052.80-85,544,750.80

Finding the Fourth Proportional to 315,576,035.20, 473,364,052.80 and 85,544,750.80

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Solution

The fourth proportional to 315,576,035.20, 473,364,052.80 and 85,544,750.80 is: 128,317,126.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,576,035.20 : 473,364,052.80 = 85,544,750.80 : x
  2. Step 2: Convert to fraction form
    315,576,035.20/473,364,052.80 = 85,544,750.80/x
  3. Step 3: Cross multiply
    315,576,035.20x = 473,364,052.80 × 85,544,750.80
  4. Step 4: Simplify right side
    315,576,035.20x = 40,493,809,934,454,040
  5. Step 5: Solve for x
    x = 40,493,809,934,454,040/315,576,035.20
  6. Step 6: Final answer
    x = 128,317,126.20

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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.