Home / 78,883,601.10-118,269,414.45-30,342,698.70

Finding the Fourth Proportional to 78,883,601.10, 118,269,414.45 and 30,342,698.70

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Solution

The fourth proportional to 78,883,601.10, 118,269,414.45 and 30,342,698.70 is: 45,492,512.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,883,601.10 : 118,269,414.45 = 30,342,698.70 : x
  2. Step 2: Convert to fraction form
    78,883,601.10/118,269,414.45 = 30,342,698.70/x
  3. Step 3: Cross multiply
    78,883,601.10x = 118,269,414.45 × 30,342,698.70
  4. Step 4: Simplify right side
    78,883,601.10x = 3,588,613,208,081,776
  5. Step 5: Solve for x
    x = 3,588,613,208,081,776/78,883,601.10
  6. Step 6: Final answer
    x = 45,492,512.49

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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.