Home / 38,964,612.96-58,429,642.08-20,765,415.84

Finding the Fourth Proportional to 38,964,612.96, 58,429,642.08 and 20,765,415.84

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Solution

The fourth proportional to 38,964,612.96, 58,429,642.08 and 20,765,415.84 is: 31,138,916.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,964,612.96 : 58,429,642.08 = 20,765,415.84 : x
  2. Step 2: Convert to fraction form
    38,964,612.96/58,429,642.08 = 20,765,415.84/x
  3. Step 3: Cross multiply
    38,964,612.96x = 58,429,642.08 × 20,765,415.84
  4. Step 4: Simplify right side
    38,964,612.96x = 1,213,315,815,173,562.50
  5. Step 5: Solve for x
    x = 1,213,315,815,173,562.50/38,964,612.96
  6. Step 6: Final answer
    x = 31,138,916.13

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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.