Home / 318,997,235.59-440,298,091.65-207,765,256.48

Finding the Fourth Proportional to 318,997,235.59, 440,298,091.65 and 207,765,256.48

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Solution

The fourth proportional to 318,997,235.59, 440,298,091.65 and 207,765,256.48 is: 286,769,400.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,997,235.59 : 440,298,091.65 = 207,765,256.48 : x
  2. Step 2: Convert to fraction form
    318,997,235.59/440,298,091.65 = 207,765,256.48/x
  3. Step 3: Cross multiply
    318,997,235.59x = 440,298,091.65 × 207,765,256.48
  4. Step 4: Simplify right side
    318,997,235.59x = 91,478,645,939,316,784
  5. Step 5: Solve for x
    x = 91,478,645,939,316,784/318,997,235.59
  6. Step 6: Final answer
    x = 286,769,400.27

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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.