Home / 318,997,235.34-440,298,091.31-207,765,256.23

Finding the Fourth Proportional to 318,997,235.34, 440,298,091.31 and 207,765,256.23

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Solution

The fourth proportional to 318,997,235.34, 440,298,091.31 and 207,765,256.23 is: 286,769,399.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,997,235.34 : 440,298,091.31 = 207,765,256.23 : x
  2. Step 2: Convert to fraction form
    318,997,235.34/440,298,091.31 = 207,765,256.23/x
  3. Step 3: Cross multiply
    318,997,235.34x = 440,298,091.31 × 207,765,256.23
  4. Step 4: Simplify right side
    318,997,235.34x = 91,478,645,757,563,264
  5. Step 5: Solve for x
    x = 91,478,645,757,563,264/318,997,235.34
  6. Step 6: Final answer
    x = 286,769,399.93

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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.