Home / 1,320,967,444.40-1,981,443,293.40-338,392,084.40

Finding the Fourth Proportional to 1,320,967,444.40, 1,981,443,293.40 and 338,392,084.40

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Solution

The fourth proportional to 1,320,967,444.40, 1,981,443,293.40 and 338,392,084.40 is: 507,586,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,967,444.40 : 1,981,443,293.40 = 338,392,084.40 : x
  2. Step 2: Convert to fraction form
    1,320,967,444.40/1,981,443,293.40 = 338,392,084.40/x
  3. Step 3: Cross multiply
    1,320,967,444.40x = 1,981,443,293.40 × 338,392,084.40
  4. Step 4: Simplify right side
    1,320,967,444.40x = 670,504,726,174,026,752
  5. Step 5: Solve for x
    x = 670,504,726,174,026,752/1,320,967,444.40
  6. Step 6: Final answer
    x = 507,586,109.72

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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.