Home / 805,788,512.30-1,208,682,768.45-288,235,837.10

Finding the Fourth Proportional to 805,788,512.30, 1,208,682,768.45 and 288,235,837.10

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Solution

The fourth proportional to 805,788,512.30, 1,208,682,768.45 and 288,235,837.10 is: 432,353,755.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,788,512.30 : 1,208,682,768.45 = 288,235,837.10 : x
  2. Step 2: Convert to fraction form
    805,788,512.30/1,208,682,768.45 = 288,235,837.10/x
  3. Step 3: Cross multiply
    805,788,512.30x = 1,208,682,768.45 × 288,235,837.10
  4. Step 4: Simplify right side
    805,788,512.30x = 348,385,689,552,531,264
  5. Step 5: Solve for x
    x = 348,385,689,552,531,264/805,788,512.30
  6. Step 6: Final answer
    x = 432,353,755.65

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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.