Home / 1,231,387,995.69-1,847,081,991.51-311,264,334.72

Finding the Fourth Proportional to 1,231,387,995.69, 1,847,081,991.51 and 311,264,334.72

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Solution

The fourth proportional to 1,231,387,995.69, 1,847,081,991.51 and 311,264,334.72 is: 466,896,501.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,387,995.69 : 1,847,081,991.51 = 311,264,334.72 : x
  2. Step 2: Convert to fraction form
    1,231,387,995.69/1,847,081,991.51 = 311,264,334.72/x
  3. Step 3: Cross multiply
    1,231,387,995.69x = 1,847,081,991.51 × 311,264,334.72
  4. Step 4: Simplify right side
    1,231,387,995.69x = 574,930,747,260,652,864
  5. Step 5: Solve for x
    x = 574,930,747,260,652,864/1,231,387,995.69
  6. Step 6: Final answer
    x = 466,896,501.57

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Double scale
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1.5x scale

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.