Home / 112,119,937.20-168,179,905.80-39,418,808.40

Finding the Fourth Proportional to 112,119,937.20, 168,179,905.80 and 39,418,808.40

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Solution

The fourth proportional to 112,119,937.20, 168,179,905.80 and 39,418,808.40 is: 59,128,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,119,937.20 : 168,179,905.80 = 39,418,808.40 : x
  2. Step 2: Convert to fraction form
    112,119,937.20/168,179,905.80 = 39,418,808.40/x
  3. Step 3: Cross multiply
    112,119,937.20x = 168,179,905.80 × 39,418,808.40
  4. Step 4: Simplify right side
    112,119,937.20x = 6,629,451,483,460,249
  5. Step 5: Solve for x
    x = 6,629,451,483,460,249/112,119,937.20
  6. Step 6: Final answer
    x = 59,128,212.60

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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.