Home / 385,215,090,325.26-531,598,066,815.85-213,937,021,814.80

Finding the Fourth Proportional to 385,215,090,325.26, 531,598,066,815.85 and 213,937,021,814.80

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Solution

The fourth proportional to 385,215,090,325.26, 531,598,066,815.85 and 213,937,021,814.80 is: 295,233,779,967.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,215,090,325.26 : 531,598,066,815.85 = 213,937,021,814.80 : x
  2. Step 2: Convert to fraction form
    385,215,090,325.26/531,598,066,815.85 = 213,937,021,814.80/x
  3. Step 3: Cross multiply
    385,215,090,325.26x = 531,598,066,815.85 × 213,937,021,814.80
  4. Step 4: Simplify right side
    385,215,090,325.26x = 113,728,507,217,087,995,838,464
  5. Step 5: Solve for x
    x = 113,728,507,217,087,995,838,464/385,215,090,325.26
  6. Step 6: Final answer
    x = 295,233,779,967.08

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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.