Home / 156,375,938.64-215,802,091.37-85,810,931.64

Finding the Fourth Proportional to 156,375,938.64, 215,802,091.37 and 85,810,931.64

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Solution

The fourth proportional to 156,375,938.64, 215,802,091.37 and 85,810,931.64 is: 118,420,894.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,375,938.64 : 215,802,091.37 = 85,810,931.64 : x
  2. Step 2: Convert to fraction form
    156,375,938.64/215,802,091.37 = 85,810,931.64/x
  3. Step 3: Cross multiply
    156,375,938.64x = 215,802,091.37 × 85,810,931.64
  4. Step 4: Simplify right side
    156,375,938.64x = 18,518,178,508,812,040
  5. Step 5: Solve for x
    x = 18,518,178,508,812,040/156,375,938.64
  6. Step 6: Final answer
    x = 118,420,894.36

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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.