Home / 156,149,890.08-215,487,409.32-86,536,455.36

Finding the Fourth Proportional to 156,149,890.08, 215,487,409.32 and 86,536,455.36

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Solution

The fourth proportional to 156,149,890.08, 215,487,409.32 and 86,536,455.36 is: 119,420,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,149,890.08 : 215,487,409.32 = 86,536,455.36 : x
  2. Step 2: Convert to fraction form
    156,149,890.08/215,487,409.32 = 86,536,455.36/x
  3. Step 3: Cross multiply
    156,149,890.08x = 215,487,409.32 × 86,536,455.36
  4. Step 4: Simplify right side
    156,149,890.08x = 18,647,516,577,262,228
  5. Step 5: Solve for x
    x = 18,647,516,577,262,228/156,149,890.08
  6. Step 6: Final answer
    x = 119,420,619.30

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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.