Home / 515,589,880,867.27-711,551,641,212.32-298,872,024,927.21

Finding the Fourth Proportional to 515,589,880,867.27, 711,551,641,212.32 and 298,872,024,927.21

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Solution

The fourth proportional to 515,589,880,867.27, 711,551,641,212.32 and 298,872,024,927.21 is: 412,465,193,249.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,589,880,867.27 : 711,551,641,212.32 = 298,872,024,927.21 : x
  2. Step 2: Convert to fraction form
    515,589,880,867.27/711,551,641,212.32 = 298,872,024,927.21/x
  3. Step 3: Cross multiply
    515,589,880,867.27x = 711,551,641,212.32 × 298,872,024,927.21
  4. Step 4: Simplify right side
    515,589,880,867.27x = 212,662,879,849,405,705,355,264
  5. Step 5: Solve for x
    x = 212,662,879,849,405,705,355,264/515,589,880,867.27
  6. Step 6: Final answer
    x = 412,465,193,249.50

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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.