Home / 258,871,360.14-388,308,491.96-86,347,700.01

Finding the Fourth Proportional to 258,871,360.14, 388,308,491.96 and 86,347,700.01

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Solution

The fourth proportional to 258,871,360.14, 388,308,491.96 and 86,347,700.01 is: 129,522,034.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,871,360.14 : 388,308,491.96 = 86,347,700.01 : x
  2. Step 2: Convert to fraction form
    258,871,360.14/388,308,491.96 = 86,347,700.01/x
  3. Step 3: Cross multiply
    258,871,360.14x = 388,308,491.96 × 86,347,700.01
  4. Step 4: Simplify right side
    258,871,360.14x = 33,529,545,174,665,840
  5. Step 5: Solve for x
    x = 33,529,545,174,665,840/258,871,360.14
  6. Step 6: Final answer
    x = 129,522,034.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.