Home / 621,703,777.46-858,026,454.12-353,844,740.16

Finding the Fourth Proportional to 621,703,777.46, 858,026,454.12 and 353,844,740.16

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Solution

The fourth proportional to 621,703,777.46, 858,026,454.12 and 353,844,740.16 is: 488,348,565.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,703,777.46 : 858,026,454.12 = 353,844,740.16 : x
  2. Step 2: Convert to fraction form
    621,703,777.46/858,026,454.12 = 353,844,740.16/x
  3. Step 3: Cross multiply
    621,703,777.46x = 858,026,454.12 × 353,844,740.16
  4. Step 4: Simplify right side
    621,703,777.46x = 303,608,147,708,497,600
  5. Step 5: Solve for x
    x = 303,608,147,708,497,600/621,703,777.46
  6. Step 6: Final answer
    x = 488,348,565.21

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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.