Home / 312,323,037,375.60-431,014,883,423.40-176,987,717,835.12

Finding the Fourth Proportional to 312,323,037,375.60, 431,014,883,423.40 and 176,987,717,835.12

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Solution

The fourth proportional to 312,323,037,375.60, 431,014,883,423.40 and 176,987,717,835.12 is: 244,248,202,793.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,323,037,375.60 : 431,014,883,423.40 = 176,987,717,835.12 : x
  2. Step 2: Convert to fraction form
    312,323,037,375.60/431,014,883,423.40 = 176,987,717,835.12/x
  3. Step 3: Cross multiply
    312,323,037,375.60x = 431,014,883,423.40 × 176,987,717,835.12
  4. Step 4: Simplify right side
    312,323,037,375.60x = 76,284,340,570,077,869,899,776
  5. Step 5: Solve for x
    x = 76,284,340,570,077,869,899,776/312,323,037,375.60
  6. Step 6: Final answer
    x = 244,248,202,793.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.