Home / 156,134,784.76-215,467,286.66-86,521,328.16

Finding the Fourth Proportional to 156,134,784.76, 215,467,286.66 and 86,521,328.16

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Solution

The fourth proportional to 156,134,784.76, 215,467,286.66 and 86,521,328.16 is: 119,400,144.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,134,784.76 : 215,467,286.66 = 86,521,328.16 : x
  2. Step 2: Convert to fraction form
    156,134,784.76/215,467,286.66 = 86,521,328.16/x
  3. Step 3: Cross multiply
    156,134,784.76x = 215,467,286.66 × 86,521,328.16
  4. Step 4: Simplify right side
    156,134,784.76x = 18,642,515,816,854,648
  5. Step 5: Solve for x
    x = 18,642,515,816,854,648/156,134,784.76
  6. Step 6: Final answer
    x = 119,400,144.21

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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.