Home / 628,879,861.68-867,842,584.56-342,773,853.36

Finding the Fourth Proportional to 628,879,861.68, 867,842,584.56 and 342,773,853.36

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Solution

The fourth proportional to 628,879,861.68, 867,842,584.56 and 342,773,853.36 is: 473,021,581.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,879,861.68 : 867,842,584.56 = 342,773,853.36 : x
  2. Step 2: Convert to fraction form
    628,879,861.68/867,842,584.56 = 342,773,853.36/x
  3. Step 3: Cross multiply
    628,879,861.68x = 867,842,584.56 × 342,773,853.36
  4. Step 4: Simplify right side
    628,879,861.68x = 297,473,746,819,532,864
  5. Step 5: Solve for x
    x = 297,473,746,819,532,864/628,879,861.68
  6. Step 6: Final answer
    x = 473,021,581.62

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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.