Home / 385,215,090,323.02-531,598,066,812.70-213,937,021,812.54

Finding the Fourth Proportional to 385,215,090,323.02, 531,598,066,812.70 and 213,937,021,812.54

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Solution

The fourth proportional to 385,215,090,323.02, 531,598,066,812.70 and 213,937,021,812.54 is: 295,233,779,963.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,215,090,323.02 : 531,598,066,812.70 = 213,937,021,812.54 : x
  2. Step 2: Convert to fraction form
    385,215,090,323.02/531,598,066,812.70 = 213,937,021,812.54/x
  3. Step 3: Cross multiply
    385,215,090,323.02x = 531,598,066,812.70 × 213,937,021,812.54
  4. Step 4: Simplify right side
    385,215,090,323.02x = 113,728,507,215,212,705,742,848
  5. Step 5: Solve for x
    x = 113,728,507,215,212,705,742,848/385,215,090,323.02
  6. Step 6: Final answer
    x = 295,233,779,963.93

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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.