Home / 112,353,605.40-168,530,408.10-72,042,821.40

Finding the Fourth Proportional to 112,353,605.40, 168,530,408.10 and 72,042,821.40

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Solution

The fourth proportional to 112,353,605.40, 168,530,408.10 and 72,042,821.40 is: 108,064,232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,353,605.40 : 168,530,408.10 = 72,042,821.40 : x
  2. Step 2: Convert to fraction form
    112,353,605.40/168,530,408.10 = 72,042,821.40/x
  3. Step 3: Cross multiply
    112,353,605.40x = 168,530,408.10 × 72,042,821.40
  4. Step 4: Simplify right side
    112,353,605.40x = 12,141,406,091,217,414
  5. Step 5: Solve for x
    x = 12,141,406,091,217,414/112,353,605.40
  6. Step 6: Final answer
    x = 108,064,232.10

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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.