Home / 162,168,338.66-243,341,062.67-68,780,784.49

Finding the Fourth Proportional to 162,168,338.66, 243,341,062.67 and 68,780,784.49

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Solution

The fourth proportional to 162,168,338.66, 243,341,062.67 and 68,780,784.49 is: 103,208,735.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,168,338.66 : 243,341,062.67 = 68,780,784.49 : x
  2. Step 2: Convert to fraction form
    162,168,338.66/243,341,062.67 = 68,780,784.49/x
  3. Step 3: Cross multiply
    162,168,338.66x = 243,341,062.67 × 68,780,784.49
  4. Step 4: Simplify right side
    162,168,338.66x = 16,737,189,188,636,454
  5. Step 5: Solve for x
    x = 16,737,189,188,636,454/162,168,338.66
  6. Step 6: Final answer
    x = 103,208,735.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.