Home / 87,783,940.32-121,142,810.16-48,626,317.68

Finding the Fourth Proportional to 87,783,940.32, 121,142,810.16 and 48,626,317.68

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Solution

The fourth proportional to 87,783,940.32, 121,142,810.16 and 48,626,317.68 is: 67,104,857.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,783,940.32 : 121,142,810.16 = 48,626,317.68 : x
  2. Step 2: Convert to fraction form
    87,783,940.32/121,142,810.16 = 48,626,317.68/x
  3. Step 3: Cross multiply
    87,783,940.32x = 121,142,810.16 × 48,626,317.68
  4. Step 4: Simplify right side
    87,783,940.32x = 5,890,728,771,488,091
  5. Step 5: Solve for x
    x = 5,890,728,771,488,091/87,783,940.32
  6. Step 6: Final answer
    x = 67,104,857.11

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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.