Home / 385,546,992,005.20-578,320,488,007.80-137,304,226,181.20

Finding the Fourth Proportional to 385,546,992,005.20, 578,320,488,007.80 and 137,304,226,181.20

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Solution

The fourth proportional to 385,546,992,005.20, 578,320,488,007.80 and 137,304,226,181.20 is: 205,956,339,271.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,546,992,005.20 : 578,320,488,007.80 = 137,304,226,181.20 : x
  2. Step 2: Convert to fraction form
    385,546,992,005.20/578,320,488,007.80 = 137,304,226,181.20/x
  3. Step 3: Cross multiply
    385,546,992,005.20x = 578,320,488,007.80 × 137,304,226,181.20
  4. Step 4: Simplify right side
    385,546,992,005.20x = 79,405,847,090,644,943,634,432
  5. Step 5: Solve for x
    x = 79,405,847,090,644,943,634,432/385,546,992,005.20
  6. Step 6: Final answer
    x = 205,956,339,271.80

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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.