Home / 511,515,882.80-767,273,824.20-188,357,764.40

Finding the Fourth Proportional to 511,515,882.80, 767,273,824.20 and 188,357,764.40

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Solution

The fourth proportional to 511,515,882.80, 767,273,824.20 and 188,357,764.40 is: 282,536,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,515,882.80 : 767,273,824.20 = 188,357,764.40 : x
  2. Step 2: Convert to fraction form
    511,515,882.80/767,273,824.20 = 188,357,764.40/x
  3. Step 3: Cross multiply
    511,515,882.80x = 767,273,824.20 × 188,357,764.40
  4. Step 4: Simplify right side
    511,515,882.80x = 144,521,982,208,950,624
  5. Step 5: Solve for x
    x = 144,521,982,208,950,624/511,515,882.80
  6. Step 6: Final answer
    x = 282,536,646.60

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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.