Home / 672,560,428.80-1,009,596,470.40-519,883,334.40

Finding the Fourth Proportional to 672,560,428.80, 1,009,596,470.40 and 519,883,334.40

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Solution

The fourth proportional to 672,560,428.80, 1,009,596,470.40 and 519,883,334.40 is: 780,409,249.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,560,428.80 : 1,009,596,470.40 = 519,883,334.40 : x
  2. Step 2: Convert to fraction form
    672,560,428.80/1,009,596,470.40 = 519,883,334.40/x
  3. Step 3: Cross multiply
    672,560,428.80x = 1,009,596,470.40 × 519,883,334.40
  4. Step 4: Simplify right side
    672,560,428.80x = 524,872,379,430,022,848
  5. Step 5: Solve for x
    x = 524,872,379,430,022,848/672,560,428.80
  6. Step 6: Final answer
    x = 780,409,249.42

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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.