Home / 520,471,975,544.98-780,297,367,848.90-328,840,094,189.21

Finding the Fourth Proportional to 520,471,975,544.98, 780,297,367,848.90 and 328,840,094,189.21

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Solution

The fourth proportional to 520,471,975,544.98, 780,297,367,848.90 and 328,840,094,189.21 is: 493,000,722,412.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,471,975,544.98 : 780,297,367,848.90 = 328,840,094,189.21 : x
  2. Step 2: Convert to fraction form
    520,471,975,544.98/780,297,367,848.90 = 328,840,094,189.21/x
  3. Step 3: Cross multiply
    520,471,975,544.98x = 780,297,367,848.90 × 328,840,094,189.21
  4. Step 4: Simplify right side
    520,471,975,544.98x = 256,593,059,939,024,933,748,736
  5. Step 5: Solve for x
    x = 256,593,059,939,024,933,748,736/520,471,975,544.98
  6. Step 6: Final answer
    x = 493,000,722,412.29

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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.