Home / 81,672,612.85-112,580,579.95-55,521,729.84

Finding the Fourth Proportional to 81,672,612.85, 112,580,579.95 and 55,521,729.84

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Solution

The fourth proportional to 81,672,612.85, 112,580,579.95 and 55,521,729.84 is: 76,533,226.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,672,612.85 : 112,580,579.95 = 55,521,729.84 : x
  2. Step 2: Convert to fraction form
    81,672,612.85/112,580,579.95 = 55,521,729.84/x
  3. Step 3: Cross multiply
    81,672,612.85x = 112,580,579.95 × 55,521,729.84
  4. Step 4: Simplify right side
    81,672,612.85x = 6,250,668,545,214,421
  5. Step 5: Solve for x
    x = 6,250,668,545,214,421/81,672,612.85
  6. Step 6: Final answer
    x = 76,533,226.10

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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.