Home / 1,377,576,311.51-2,066,361,809.45-342,438,188.92

Finding the Fourth Proportional to 1,377,576,311.51, 2,066,361,809.45 and 342,438,188.92

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Solution

The fourth proportional to 1,377,576,311.51, 2,066,361,809.45 and 342,438,188.92 is: 513,656,622.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,576,311.51 : 2,066,361,809.45 = 342,438,188.92 : x
  2. Step 2: Convert to fraction form
    1,377,576,311.51/2,066,361,809.45 = 342,438,188.92/x
  3. Step 3: Cross multiply
    1,377,576,311.51x = 2,066,361,809.45 × 342,438,188.92
  4. Step 4: Simplify right side
    1,377,576,311.51x = 707,601,195,674,634,112
  5. Step 5: Solve for x
    x = 707,601,195,674,634,112/1,377,576,311.51
  6. Step 6: Final answer
    x = 513,656,622.69

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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.