Home / 546,021,007.20-819,031,510.80-520,511,839.20

Finding the Fourth Proportional to 546,021,007.20, 819,031,510.80 and 520,511,839.20

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Solution

The fourth proportional to 546,021,007.20, 819,031,510.80 and 520,511,839.20 is: 780,767,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,021,007.20 : 819,031,510.80 = 520,511,839.20 : x
  2. Step 2: Convert to fraction form
    546,021,007.20/819,031,510.80 = 520,511,839.20/x
  3. Step 3: Cross multiply
    546,021,007.20x = 819,031,510.80 × 520,511,839.20
  4. Step 4: Simplify right side
    546,021,007.20x = 426,315,598,049,262,656
  5. Step 5: Solve for x
    x = 426,315,598,049,262,656/546,021,007.20
  6. Step 6: Final answer
    x = 780,767,758.80

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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.