Home / 729,244,374.32-1,006,357,285.74-399,219,513.32

Finding the Fourth Proportional to 729,244,374.32, 1,006,357,285.74 and 399,219,513.32

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Solution

The fourth proportional to 729,244,374.32, 1,006,357,285.74 and 399,219,513.32 is: 550,922,955.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,244,374.32 : 1,006,357,285.74 = 399,219,513.32 : x
  2. Step 2: Convert to fraction form
    729,244,374.32/1,006,357,285.74 = 399,219,513.32/x
  3. Step 3: Cross multiply
    729,244,374.32x = 1,006,357,285.74 × 399,219,513.32
  4. Step 4: Simplify right side
    729,244,374.32x = 401,757,465,835,250,560
  5. Step 5: Solve for x
    x = 401,757,465,835,250,560/729,244,374.32
  6. Step 6: Final answer
    x = 550,922,955.30

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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.