Home / 156,975,910.23-216,624,641.58-87,361,272.66

Finding the Fourth Proportional to 156,975,910.23, 216,624,641.58 and 87,361,272.66

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Solution

The fourth proportional to 156,975,910.23, 216,624,641.58 and 87,361,272.66 is: 120,557,379.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,975,910.23 : 216,624,641.58 = 87,361,272.66 : x
  2. Step 2: Convert to fraction form
    156,975,910.23/216,624,641.58 = 87,361,272.66/x
  3. Step 3: Cross multiply
    156,975,910.23x = 216,624,641.58 × 87,361,272.66
  4. Step 4: Simplify right side
    156,975,910.23x = 18,924,604,377,945,152
  5. Step 5: Solve for x
    x = 18,924,604,377,945,152/156,975,910.23
  6. Step 6: Final answer
    x = 120,557,379.47

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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.