Home / 1,008,669,920.39-1,392,026,870.09-556,545,678.02

Finding the Fourth Proportional to 1,008,669,920.39, 1,392,026,870.09 and 556,545,678.02

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Solution

The fourth proportional to 1,008,669,920.39, 1,392,026,870.09 and 556,545,678.02 is: 768,067,454.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,669,920.39 : 1,392,026,870.09 = 556,545,678.02 : x
  2. Step 2: Convert to fraction form
    1,008,669,920.39/1,392,026,870.09 = 556,545,678.02/x
  3. Step 3: Cross multiply
    1,008,669,920.39x = 1,392,026,870.09 × 556,545,678.02
  4. Step 4: Simplify right side
    1,008,669,920.39x = 774,726,538,233,514,752
  5. Step 5: Solve for x
    x = 774,726,538,233,514,752/1,008,669,920.39
  6. Step 6: Final answer
    x = 768,067,454.55

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Double scale
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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.