Home / 156,573,039.45-216,073,470.60-86,011,622.85

Finding the Fourth Proportional to 156,573,039.45, 216,073,470.60 and 86,011,622.85

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Solution

The fourth proportional to 156,573,039.45, 216,073,470.60 and 86,011,622.85 is: 118,697,509.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,573,039.45 : 216,073,470.60 = 86,011,622.85 : x
  2. Step 2: Convert to fraction form
    156,573,039.45/216,073,470.60 = 86,011,622.85/x
  3. Step 3: Cross multiply
    156,573,039.45x = 216,073,470.60 × 86,011,622.85
  4. Step 4: Simplify right side
    156,573,039.45x = 18,584,829,861,137,760
  5. Step 5: Solve for x
    x = 18,584,829,861,137,760/156,573,039.45
  6. Step 6: Final answer
    x = 118,697,509.65

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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.