Home / 212,785,150.60-318,715,831.50-130,654,727.56

Finding the Fourth Proportional to 212,785,150.60, 318,715,831.50 and 130,654,727.56

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Solution

The fourth proportional to 212,785,150.60, 318,715,831.50 and 130,654,727.56 is: 195,698,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,785,150.60 : 318,715,831.50 = 130,654,727.56 : x
  2. Step 2: Convert to fraction form
    212,785,150.60/318,715,831.50 = 130,654,727.56/x
  3. Step 3: Cross multiply
    212,785,150.60x = 318,715,831.50 × 130,654,727.56
  4. Step 4: Simplify right side
    212,785,150.60x = 41,641,730,133,691,368
  5. Step 5: Solve for x
    x = 41,641,730,133,691,368/212,785,150.60
  6. Step 6: Final answer
    x = 195,698,478.10

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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.