Home / 1,371,499,324.13-1,892,826,078.18-768,832,721.44

Finding the Fourth Proportional to 1,371,499,324.13, 1,892,826,078.18 and 768,832,721.44

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Solution

The fourth proportional to 1,371,499,324.13, 1,892,826,078.18 and 768,832,721.44 is: 1,061,077,172.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,499,324.13 : 1,892,826,078.18 = 768,832,721.44 : x
  2. Step 2: Convert to fraction form
    1,371,499,324.13/1,892,826,078.18 = 768,832,721.44/x
  3. Step 3: Cross multiply
    1,371,499,324.13x = 1,892,826,078.18 × 768,832,721.44
  4. Step 4: Simplify right side
    1,371,499,324.13x = 1,455,266,624,899,731,712
  5. Step 5: Solve for x
    x = 1,455,266,624,899,731,712/1,371,499,324.13
  6. Step 6: Final answer
    x = 1,061,077,172.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.