Home / 1,312,568,997.75-1,811,235,717.59-740,320,515.50

Finding the Fourth Proportional to 1,312,568,997.75, 1,811,235,717.59 and 740,320,515.50

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Solution

The fourth proportional to 1,312,568,997.75, 1,811,235,717.59 and 740,320,515.50 is: 1,021,580,551.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,568,997.75 : 1,811,235,717.59 = 740,320,515.50 : x
  2. Step 2: Convert to fraction form
    1,312,568,997.75/1,811,235,717.59 = 740,320,515.50/x
  3. Step 3: Cross multiply
    1,312,568,997.75x = 1,811,235,717.59 × 740,320,515.50
  4. Step 4: Simplify right side
    1,312,568,997.75x = 1,340,894,960,125,483,520
  5. Step 5: Solve for x
    x = 1,340,894,960,125,483,520/1,312,568,997.75
  6. Step 6: Final answer
    x = 1,021,580,551.14

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Double scale
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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.