Home / 42,785,989.20-64,162,898.42-15,485,536.98

Finding the Fourth Proportional to 42,785,989.20, 64,162,898.42 and 15,485,536.98

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Solution

The fourth proportional to 42,785,989.20, 64,162,898.42 and 15,485,536.98 is: 23,222,483.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,785,989.20 : 64,162,898.42 = 15,485,536.98 : x
  2. Step 2: Convert to fraction form
    42,785,989.20/64,162,898.42 = 15,485,536.98/x
  3. Step 3: Cross multiply
    42,785,989.20x = 64,162,898.42 × 15,485,536.98
  4. Step 4: Simplify right side
    42,785,989.20x = 993,596,936,149,465.88
  5. Step 5: Solve for x
    x = 993,596,936,149,465.88/42,785,989.20
  6. Step 6: Final answer
    x = 23,222,483.69

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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.