Home / 2,900,765.40-4,347,000.90-2,136,643.80

Finding the Fourth Proportional to 2,900,765.40, 4,347,000.90 and 2,136,643.80

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Solution

The fourth proportional to 2,900,765.40, 4,347,000.90 and 2,136,643.80 is: 3,201,910.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900,765.40 : 4,347,000.90 = 2,136,643.80 : x
  2. Step 2: Convert to fraction form
    2,900,765.40/4,347,000.90 = 2,136,643.80/x
  3. Step 3: Cross multiply
    2,900,765.40x = 4,347,000.90 × 2,136,643.80
  4. Step 4: Simplify right side
    2,900,765.40x = 9,287,992,521,579.42
  5. Step 5: Solve for x
    x = 9,287,992,521,579.42/2,900,765.40
  6. Step 6: Final answer
    x = 3,201,910.96

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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.