Home / 210,789,000.36-290,919,369.78-121,463,565.48

Finding the Fourth Proportional to 210,789,000.36, 290,919,369.78 and 121,463,565.48

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Solution

The fourth proportional to 210,789,000.36, 290,919,369.78 and 121,463,565.48 is: 167,637,323.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,789,000.36 : 290,919,369.78 = 121,463,565.48 : x
  2. Step 2: Convert to fraction form
    210,789,000.36/290,919,369.78 = 121,463,565.48/x
  3. Step 3: Cross multiply
    210,789,000.36x = 290,919,369.78 × 121,463,565.48
  4. Step 4: Simplify right side
    210,789,000.36x = 35,336,103,920,673,360
  5. Step 5: Solve for x
    x = 35,336,103,920,673,360/210,789,000.36
  6. Step 6: Final answer
    x = 167,637,323.87

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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.