Home / 1,305,328,483.08-1,957,418,155.92-691,768,957.32

Finding the Fourth Proportional to 1,305,328,483.08, 1,957,418,155.92 and 691,768,957.32

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Solution

The fourth proportional to 1,305,328,483.08, 1,957,418,155.92 and 691,768,957.32 is: 1,037,348,938.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,328,483.08 : 1,957,418,155.92 = 691,768,957.32 : x
  2. Step 2: Convert to fraction form
    1,305,328,483.08/1,957,418,155.92 = 691,768,957.32/x
  3. Step 3: Cross multiply
    1,305,328,483.08x = 1,957,418,155.92 × 691,768,957.32
  4. Step 4: Simplify right side
    1,305,328,483.08x = 1,354,081,116,760,015,616
  5. Step 5: Solve for x
    x = 1,354,081,116,760,015,616/1,305,328,483.08
  6. Step 6: Final answer
    x = 1,037,348,938.84

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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.