Home / 151,431,241-208,975,112.58-86,247,210.28

Finding the Fourth Proportional to 151,431,241, 208,975,112.58 and 86,247,210.28

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Solution

The fourth proportional to 151,431,241, 208,975,112.58 and 86,247,210.28 is: 119,021,150.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,431,241 : 208,975,112.58 = 86,247,210.28 : x
  2. Step 2: Convert to fraction form
    151,431,241/208,975,112.58 = 86,247,210.28/x
  3. Step 3: Cross multiply
    151,431,241x = 208,975,112.58 × 86,247,210.28
  4. Step 4: Simplify right side
    151,431,241x = 18,023,520,477,973,936
  5. Step 5: Solve for x
    x = 18,023,520,477,973,936/151,431,241
  6. Step 6: Final answer
    x = 119,021,150.19

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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.