Home / 76,486,623.87-114,736,872.66-21,157,925.31

Finding the Fourth Proportional to 76,486,623.87, 114,736,872.66 and 21,157,925.31

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Solution

The fourth proportional to 76,486,623.87, 114,736,872.66 and 21,157,925.31 is: 31,738,806.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,486,623.87 : 114,736,872.66 = 21,157,925.31 : x
  2. Step 2: Convert to fraction form
    76,486,623.87/114,736,872.66 = 21,157,925.31/x
  3. Step 3: Cross multiply
    76,486,623.87x = 114,736,872.66 × 21,157,925.31
  4. Step 4: Simplify right side
    76,486,623.87x = 2,427,594,182,043,261
  5. Step 5: Solve for x
    x = 2,427,594,182,043,261/76,486,623.87
  6. Step 6: Final answer
    x = 31,738,806.86

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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.