Home / 328,747,781.79-453,453,441.44-211,421,530.35

Finding the Fourth Proportional to 328,747,781.79, 453,453,441.44 and 211,421,530.35

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Solution

The fourth proportional to 328,747,781.79, 453,453,441.44 and 211,421,530.35 is: 291,621,193.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,747,781.79 : 453,453,441.44 = 211,421,530.35 : x
  2. Step 2: Convert to fraction form
    328,747,781.79/453,453,441.44 = 211,421,530.35/x
  3. Step 3: Cross multiply
    328,747,781.79x = 453,453,441.44 × 211,421,530.35
  4. Step 4: Simplify right side
    328,747,781.79x = 95,869,820,530,661,792
  5. Step 5: Solve for x
    x = 95,869,820,530,661,792/328,747,781.79
  6. Step 6: Final answer
    x = 291,621,193.64

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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.