Home / 608,641,439.78-839,854,327.60-340,731,942.61

Finding the Fourth Proportional to 608,641,439.78, 839,854,327.60 and 340,731,942.61

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Solution

The fourth proportional to 608,641,439.78, 839,854,327.60 and 340,731,942.61 is: 470,170,412.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,641,439.78 : 839,854,327.60 = 340,731,942.61 : x
  2. Step 2: Convert to fraction form
    608,641,439.78/839,854,327.60 = 340,731,942.61/x
  3. Step 3: Cross multiply
    608,641,439.78x = 839,854,327.60 × 340,731,942.61
  4. Step 4: Simplify right side
    608,641,439.78x = 286,165,196,550,540,192
  5. Step 5: Solve for x
    x = 286,165,196,550,540,192/608,641,439.78
  6. Step 6: Final answer
    x = 470,170,412.08

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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.