Home / 156,813,280.53-216,402,506.54-87,197,166.73

Finding the Fourth Proportional to 156,813,280.53, 216,402,506.54 and 87,197,166.73

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Solution

The fourth proportional to 156,813,280.53, 216,402,506.54 and 87,197,166.73 is: 120,332,189.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,813,280.53 : 216,402,506.54 = 87,197,166.73 : x
  2. Step 2: Convert to fraction form
    156,813,280.53/216,402,506.54 = 87,197,166.73/x
  3. Step 3: Cross multiply
    156,813,280.53x = 216,402,506.54 × 87,197,166.73
  4. Step 4: Simplify right side
    156,813,280.53x = 18,869,685,443,558,296
  5. Step 5: Solve for x
    x = 18,869,685,443,558,296/156,813,280.53
  6. Step 6: Final answer
    x = 120,332,189.85

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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.