Home / 156,149,894.58-215,487,415.53-86,536,459.86

Finding the Fourth Proportional to 156,149,894.58, 215,487,415.53 and 86,536,459.86

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Solution

The fourth proportional to 156,149,894.58, 215,487,415.53 and 86,536,459.86 is: 119,420,625.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,149,894.58 : 215,487,415.53 = 86,536,459.86 : x
  2. Step 2: Convert to fraction form
    156,149,894.58/215,487,415.53 = 86,536,459.86/x
  3. Step 3: Cross multiply
    156,149,894.58x = 215,487,415.53 × 86,536,459.86
  4. Step 4: Simplify right side
    156,149,894.58x = 18,647,518,084,346,984
  5. Step 5: Solve for x
    x = 18,647,518,084,346,984/156,149,894.58
  6. Step 6: Final answer
    x = 119,420,625.51

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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.