Home / 48,291,990.30-72,437,985.45-12,390,198.30

Finding the Fourth Proportional to 48,291,990.30, 72,437,985.45 and 12,390,198.30

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Solution

The fourth proportional to 48,291,990.30, 72,437,985.45 and 12,390,198.30 is: 18,585,297.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,291,990.30 : 72,437,985.45 = 12,390,198.30 : x
  2. Step 2: Convert to fraction form
    48,291,990.30/72,437,985.45 = 12,390,198.30/x
  3. Step 3: Cross multiply
    48,291,990.30x = 72,437,985.45 × 12,390,198.30
  4. Step 4: Simplify right side
    48,291,990.30x = 897,521,004,178,014.88
  5. Step 5: Solve for x
    x = 897,521,004,178,014.88/48,291,990.30
  6. Step 6: Final answer
    x = 18,585,297.45

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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.