Home / 413,039,274.30-619,558,911.45-388,805,564.70

Finding the Fourth Proportional to 413,039,274.30, 619,558,911.45 and 388,805,564.70

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Solution

The fourth proportional to 413,039,274.30, 619,558,911.45 and 388,805,564.70 is: 583,208,347.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,039,274.30 : 619,558,911.45 = 388,805,564.70 : x
  2. Step 2: Convert to fraction form
    413,039,274.30/619,558,911.45 = 388,805,564.70/x
  3. Step 3: Cross multiply
    413,039,274.30x = 619,558,911.45 × 388,805,564.70
  4. Step 4: Simplify right side
    413,039,274.30x = 240,887,952,431,234,560
  5. Step 5: Solve for x
    x = 240,887,952,431,234,560/413,039,274.30
  6. Step 6: Final answer
    x = 583,208,347.05

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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.