Home / 1,139,823,478.10-1,709,735,217.15-777,026,422.10

Finding the Fourth Proportional to 1,139,823,478.10, 1,709,735,217.15 and 777,026,422.10

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Solution

The fourth proportional to 1,139,823,478.10, 1,709,735,217.15 and 777,026,422.10 is: 1,165,539,633.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,823,478.10 : 1,709,735,217.15 = 777,026,422.10 : x
  2. Step 2: Convert to fraction form
    1,139,823,478.10/1,709,735,217.15 = 777,026,422.10/x
  3. Step 3: Cross multiply
    1,139,823,478.10x = 1,709,735,217.15 × 777,026,422.10
  4. Step 4: Simplify right side
    1,139,823,478.10x = 1,328,509,438,520,431,104
  5. Step 5: Solve for x
    x = 1,328,509,438,520,431,104/1,139,823,478.10
  6. Step 6: Final answer
    x = 1,165,539,633.15

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Double scale
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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.