Home / 689,768,570.16-951,738,533.64-396,356,451.12

Finding the Fourth Proportional to 689,768,570.16, 951,738,533.64 and 396,356,451.12

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Solution

The fourth proportional to 689,768,570.16, 951,738,533.64 and 396,356,451.12 is: 546,890,252.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,768,570.16 : 951,738,533.64 = 396,356,451.12 : x
  2. Step 2: Convert to fraction form
    689,768,570.16/951,738,533.64 = 396,356,451.12/x
  3. Step 3: Cross multiply
    689,768,570.16x = 951,738,533.64 × 396,356,451.12
  4. Step 4: Simplify right side
    689,768,570.16x = 377,227,707,587,703,104
  5. Step 5: Solve for x
    x = 377,227,707,587,703,104/689,768,570.16
  6. Step 6: Final answer
    x = 546,890,252.63

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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.