Home / 356,508,420.80-535,612,936.80-319,094,974.40

Finding the Fourth Proportional to 356,508,420.80, 535,612,936.80 and 319,094,974.40

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Solution

The fourth proportional to 356,508,420.80, 535,612,936.80 and 319,094,974.40 is: 479,403,532.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,508,420.80 : 535,612,936.80 = 319,094,974.40 : x
  2. Step 2: Convert to fraction form
    356,508,420.80/535,612,936.80 = 319,094,974.40/x
  3. Step 3: Cross multiply
    356,508,420.80x = 535,612,936.80 × 319,094,974.40
  4. Step 4: Simplify right side
    356,508,420.80x = 170,911,396,356,504,800
  5. Step 5: Solve for x
    x = 170,911,396,356,504,800/356,508,420.80
  6. Step 6: Final answer
    x = 479,403,532.67

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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.