Home / 778,045,423.86-1,073,699,474.94-420,813,599.22

Finding the Fourth Proportional to 778,045,423.86, 1,073,699,474.94 and 420,813,599.22

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Solution

The fourth proportional to 778,045,423.86, 1,073,699,474.94 and 420,813,599.22 is: 580,721,030.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,045,423.86 : 1,073,699,474.94 = 420,813,599.22 : x
  2. Step 2: Convert to fraction form
    778,045,423.86/1,073,699,474.94 = 420,813,599.22/x
  3. Step 3: Cross multiply
    778,045,423.86x = 1,073,699,474.94 × 420,813,599.22
  4. Step 4: Simplify right side
    778,045,423.86x = 451,827,340,530,125,632
  5. Step 5: Solve for x
    x = 451,827,340,530,125,632/778,045,423.86
  6. Step 6: Final answer
    x = 580,721,030.77

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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.