Home / 309,765,727-427,507,582.95-231,313,077.98

Finding the Fourth Proportional to 309,765,727, 427,507,582.95 and 231,313,077.98

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Solution

The fourth proportional to 309,765,727, 427,507,582.95 and 231,313,077.98 is: 319,235,106.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,765,727 : 427,507,582.95 = 231,313,077.98 : x
  2. Step 2: Convert to fraction form
    309,765,727/427,507,582.95 = 231,313,077.98/x
  3. Step 3: Cross multiply
    309,765,727x = 427,507,582.95 × 231,313,077.98
  4. Step 4: Simplify right side
    309,765,727x = 98,888,094,871,954,656
  5. Step 5: Solve for x
    x = 98,888,094,871,954,656/309,765,727
  6. Step 6: Final answer
    x = 319,235,106.57

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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.