Home / 172,184,242.68-258,425,607.80-90,360,929.12

Finding the Fourth Proportional to 172,184,242.68, 258,425,607.80 and 90,360,929.12

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Solution

The fourth proportional to 172,184,242.68, 258,425,607.80 and 90,360,929.12 is: 135,619,715.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,184,242.68 : 258,425,607.80 = 90,360,929.12 : x
  2. Step 2: Convert to fraction form
    172,184,242.68/258,425,607.80 = 90,360,929.12/x
  3. Step 3: Cross multiply
    172,184,242.68x = 258,425,607.80 × 90,360,929.12
  4. Step 4: Simplify right side
    172,184,242.68x = 23,351,578,027,464,784
  5. Step 5: Solve for x
    x = 23,351,578,027,464,784/172,184,242.68
  6. Step 6: Final answer
    x = 135,619,715.63

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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.