Home / 7,860,001.80-11,790,002.70-2,180,281.80

Finding the Fourth Proportional to 7,860,001.80, 11,790,002.70 and 2,180,281.80

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Solution

The fourth proportional to 7,860,001.80, 11,790,002.70 and 2,180,281.80 is: 3,270,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860,001.80 : 11,790,002.70 = 2,180,281.80 : x
  2. Step 2: Convert to fraction form
    7,860,001.80/11,790,002.70 = 2,180,281.80/x
  3. Step 3: Cross multiply
    7,860,001.80x = 11,790,002.70 × 2,180,281.80
  4. Step 4: Simplify right side
    7,860,001.80x = 25,705,528,308,760.86
  5. Step 5: Solve for x
    x = 25,705,528,308,760.86/7,860,001.80
  6. Step 6: Final answer
    x = 3,270,422.70

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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.