Home / 1,488,965,409.40-2,233,448,114.10-398,448,477.40

Finding the Fourth Proportional to 1,488,965,409.40, 2,233,448,114.10 and 398,448,477.40

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Solution

The fourth proportional to 1,488,965,409.40, 2,233,448,114.10 and 398,448,477.40 is: 597,672,716.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,965,409.40 : 2,233,448,114.10 = 398,448,477.40 : x
  2. Step 2: Convert to fraction form
    1,488,965,409.40/2,233,448,114.10 = 398,448,477.40/x
  3. Step 3: Cross multiply
    1,488,965,409.40x = 2,233,448,114.10 × 398,448,477.40
  4. Step 4: Simplify right side
    1,488,965,409.40x = 889,914,000,415,046,400
  5. Step 5: Solve for x
    x = 889,914,000,415,046,400/1,488,965,409.40
  6. Step 6: Final answer
    x = 597,672,716.10

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Double scale
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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.