Home / 779,929,874.76-1,169,894,741.12-343,230,558.76

Finding the Fourth Proportional to 779,929,874.76, 1,169,894,741.12 and 343,230,558.76

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Solution

The fourth proportional to 779,929,874.76, 1,169,894,741.12 and 343,230,558.76 is: 514,845,806.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,929,874.76 : 1,169,894,741.12 = 343,230,558.76 : x
  2. Step 2: Convert to fraction form
    779,929,874.76/1,169,894,741.12 = 343,230,558.76/x
  3. Step 3: Cross multiply
    779,929,874.76x = 1,169,894,741.12 × 343,230,558.76
  4. Step 4: Simplify right side
    779,929,874.76x = 401,543,625,685,003,072
  5. Step 5: Solve for x
    x = 401,543,625,685,003,072/779,929,874.76
  6. Step 6: Final answer
    x = 514,845,806.89

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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.