Home / 156,857,023.53-216,447,528.11-90,764,338.05

Finding the Fourth Proportional to 156,857,023.53, 216,447,528.11 and 90,764,338.05

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Solution

The fourth proportional to 156,857,023.53, 216,447,528.11 and 90,764,338.05 is: 125,246,011.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,857,023.53 : 216,447,528.11 = 90,764,338.05 : x
  2. Step 2: Convert to fraction form
    156,857,023.53/216,447,528.11 = 90,764,338.05/x
  3. Step 3: Cross multiply
    156,857,023.53x = 216,447,528.11 × 90,764,338.05
  4. Step 4: Simplify right side
    156,857,023.53x = 19,645,716,611,009,096
  5. Step 5: Solve for x
    x = 19,645,716,611,009,096/156,857,023.53
  6. Step 6: Final answer
    x = 125,246,011.74

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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.