Home / 1,553,338,168.75-2,143,606,590.88-838,873,653.28

Finding the Fourth Proportional to 1,553,338,168.75, 2,143,606,590.88 and 838,873,653.28

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Solution

The fourth proportional to 1,553,338,168.75, 2,143,606,590.88 and 838,873,653.28 is: 1,157,645,597.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,338,168.75 : 2,143,606,590.88 = 838,873,653.28 : x
  2. Step 2: Convert to fraction form
    1,553,338,168.75/2,143,606,590.88 = 838,873,653.28/x
  3. Step 3: Cross multiply
    1,553,338,168.75x = 2,143,606,590.88 × 838,873,653.28
  4. Step 4: Simplify right side
    1,553,338,168.75x = 1,798,215,092,096,028,416
  5. Step 5: Solve for x
    x = 1,798,215,092,096,028,416/1,553,338,168.75
  6. Step 6: Final answer
    x = 1,157,645,597.25

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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.