Home / 385,215,090,324.52-531,598,066,814.76-213,937,021,814.05

Finding the Fourth Proportional to 385,215,090,324.52, 531,598,066,814.76 and 213,937,021,814.05

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Solution

The fourth proportional to 385,215,090,324.52, 531,598,066,814.76 and 213,937,021,814.05 is: 295,233,779,966.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,215,090,324.52 : 531,598,066,814.76 = 213,937,021,814.05 : x
  2. Step 2: Convert to fraction form
    385,215,090,324.52/531,598,066,814.76 = 213,937,021,814.05/x
  3. Step 3: Cross multiply
    385,215,090,324.52x = 531,598,066,814.76 × 213,937,021,814.05
  4. Step 4: Simplify right side
    385,215,090,324.52x = 113,728,507,216,456,115,552,256
  5. Step 5: Solve for x
    x = 113,728,507,216,456,115,552,256/385,215,090,324.52
  6. Step 6: Final answer
    x = 295,233,779,966.01

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1.5x scale

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.