Home / 180,455,709.72-249,022,436.12-102,137,581.71

Finding the Fourth Proportional to 180,455,709.72, 249,022,436.12 and 102,137,581.71

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Solution

The fourth proportional to 180,455,709.72, 249,022,436.12 and 102,137,581.71 is: 140,946,215.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,455,709.72 : 249,022,436.12 = 102,137,581.71 : x
  2. Step 2: Convert to fraction form
    180,455,709.72/249,022,436.12 = 102,137,581.71/x
  3. Step 3: Cross multiply
    180,455,709.72x = 249,022,436.12 × 102,137,581.71
  4. Step 4: Simplify right side
    180,455,709.72x = 25,434,549,416,829,756
  5. Step 5: Solve for x
    x = 25,434,549,416,829,756/180,455,709.72
  6. Step 6: Final answer
    x = 140,946,215.87

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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.