Home / 729,051,651.78-1,005,983,050.72-442,794,215.02

Finding the Fourth Proportional to 729,051,651.78, 1,005,983,050.72 and 442,794,215.02

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Solution

The fourth proportional to 729,051,651.78, 1,005,983,050.72 and 442,794,215.02 is: 610,990,283.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,051,651.78 : 1,005,983,050.72 = 442,794,215.02 : x
  2. Step 2: Convert to fraction form
    729,051,651.78/1,005,983,050.72 = 442,794,215.02/x
  3. Step 3: Cross multiply
    729,051,651.78x = 1,005,983,050.72 × 442,794,215.02
  4. Step 4: Simplify right side
    729,051,651.78x = 445,443,475,266,987,264
  5. Step 5: Solve for x
    x = 445,443,475,266,987,264/729,051,651.78
  6. Step 6: Final answer
    x = 610,990,283.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.