Home / 1,345,233,873.53-1,856,468,550.41-780,675,045.05

Finding the Fourth Proportional to 1,345,233,873.53, 1,856,468,550.41 and 780,675,045.05

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Solution

The fourth proportional to 1,345,233,873.53, 1,856,468,550.41 and 780,675,045.05 is: 1,077,358,143.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,233,873.53 : 1,856,468,550.41 = 780,675,045.05 : x
  2. Step 2: Convert to fraction form
    1,345,233,873.53/1,856,468,550.41 = 780,675,045.05/x
  3. Step 3: Cross multiply
    1,345,233,873.53x = 1,856,468,550.41 × 780,675,045.05
  4. Step 4: Simplify right side
    1,345,233,873.53x = 1,449,298,669,221,331,456
  5. Step 5: Solve for x
    x = 1,449,298,669,221,331,456/1,345,233,873.53
  6. Step 6: Final answer
    x = 1,077,358,143.99

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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.