Home / 156,118,946.58-215,444,399.49-85,543,341.86

Finding the Fourth Proportional to 156,118,946.58, 215,444,399.49 and 85,543,341.86

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Solution

The fourth proportional to 156,118,946.58, 215,444,399.49 and 85,543,341.86 is: 118,049,950.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,118,946.58 : 215,444,399.49 = 85,543,341.86 : x
  2. Step 2: Convert to fraction form
    156,118,946.58/215,444,399.49 = 85,543,341.86/x
  3. Step 3: Cross multiply
    156,118,946.58x = 215,444,399.49 × 85,543,341.86
  4. Step 4: Simplify right side
    156,118,946.58x = 18,429,833,917,934,092
  5. Step 5: Solve for x
    x = 18,429,833,917,934,092/156,118,946.58
  6. Step 6: Final answer
    x = 118,049,950.51

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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.