Home / 669,222,145.80-1,003,833,218.70-487,823,617.80

Finding the Fourth Proportional to 669,222,145.80, 1,003,833,218.70 and 487,823,617.80

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Solution

The fourth proportional to 669,222,145.80, 1,003,833,218.70 and 487,823,617.80 is: 731,735,426.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,222,145.80 : 1,003,833,218.70 = 487,823,617.80 : x
  2. Step 2: Convert to fraction form
    669,222,145.80/1,003,833,218.70 = 487,823,617.80/x
  3. Step 3: Cross multiply
    669,222,145.80x = 1,003,833,218.70 × 487,823,617.80
  4. Step 4: Simplify right side
    669,222,145.80x = 489,693,552,414,052,672
  5. Step 5: Solve for x
    x = 489,693,552,414,052,672/669,222,145.80
  6. Step 6: Final answer
    x = 731,735,426.70

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1.5x scale

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.