Home / 515,154,241-772,632,795.78-200,020,276.84

Finding the Fourth Proportional to 515,154,241, 772,632,795.78 and 200,020,276.84

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Solution

The fourth proportional to 515,154,241, 772,632,795.78 and 200,020,276.84 is: 299,992,144.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,154,241 : 772,632,795.78 = 200,020,276.84 : x
  2. Step 2: Convert to fraction form
    515,154,241/772,632,795.78 = 200,020,276.84/x
  3. Step 3: Cross multiply
    515,154,241x = 772,632,795.78 × 200,020,276.84
  4. Step 4: Simplify right side
    515,154,241x = 154,542,225,707,578,784
  5. Step 5: Solve for x
    x = 154,542,225,707,578,784/515,154,241
  6. Step 6: Final answer
    x = 299,992,144.89

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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.