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Finding the Fourth Proportional to 309,115,700.80, 463,673,551.20 and 165,788,468.80

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Solution

The fourth proportional to 309,115,700.80, 463,673,551.20 and 165,788,468.80 is: 248,682,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,115,700.80 : 463,673,551.20 = 165,788,468.80 : x
  2. Step 2: Convert to fraction form
    309,115,700.80/463,673,551.20 = 165,788,468.80/x
  3. Step 3: Cross multiply
    309,115,700.80x = 463,673,551.20 × 165,788,468.80
  4. Step 4: Simplify right side
    309,115,700.80x = 76,871,728,076,506,400
  5. Step 5: Solve for x
    x = 76,871,728,076,506,400/309,115,700.80
  6. Step 6: Final answer
    x = 248,682,703.20

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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.