Home / 266,119,147.20-399,178,720.80-163,998,494.40

Finding the Fourth Proportional to 266,119,147.20, 399,178,720.80 and 163,998,494.40

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Solution

The fourth proportional to 266,119,147.20, 399,178,720.80 and 163,998,494.40 is: 245,997,741.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,119,147.20 : 399,178,720.80 = 163,998,494.40 : x
  2. Step 2: Convert to fraction form
    266,119,147.20/399,178,720.80 = 163,998,494.40/x
  3. Step 3: Cross multiply
    266,119,147.20x = 399,178,720.80 × 163,998,494.40
  4. Step 4: Simplify right side
    266,119,147.20x = 65,464,709,207,717,968
  5. Step 5: Solve for x
    x = 65,464,709,207,717,968/266,119,147.20
  6. Step 6: Final answer
    x = 245,997,741.60

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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.