Home / 1,305,328,507.45-1,957,418,192.06-691,768,981.69

Finding the Fourth Proportional to 1,305,328,507.45, 1,957,418,192.06 and 691,768,981.69

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Solution

The fourth proportional to 1,305,328,507.45, 1,957,418,192.06 and 691,768,981.69 is: 1,037,348,975.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,328,507.45 : 1,957,418,192.06 = 691,768,981.69 : x
  2. Step 2: Convert to fraction form
    1,305,328,507.45/1,957,418,192.06 = 691,768,981.69/x
  3. Step 3: Cross multiply
    1,305,328,507.45x = 1,957,418,192.06 × 691,768,981.69
  4. Step 4: Simplify right side
    1,305,328,507.45x = 1,354,081,189,459,368,448
  5. Step 5: Solve for x
    x = 1,354,081,189,459,368,448/1,305,328,507.45
  6. Step 6: Final answer
    x = 1,037,348,975.17

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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.