Home / 2,829,777.40-4,235,334.90-1,989,969.40

Finding the Fourth Proportional to 2,829,777.40, 4,235,334.90 and 1,989,969.40

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Solution

The fourth proportional to 2,829,777.40, 4,235,334.90 and 1,989,969.40 is: 2,978,392.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829,777.40 : 4,235,334.90 = 1,989,969.40 : x
  2. Step 2: Convert to fraction form
    2,829,777.40/4,235,334.90 = 1,989,969.40/x
  3. Step 3: Cross multiply
    2,829,777.40x = 4,235,334.90 × 1,989,969.40
  4. Step 4: Simplify right side
    2,829,777.40x = 8,428,186,849,752.06
  5. Step 5: Solve for x
    x = 8,428,186,849,752.06/2,829,777.40
  6. Step 6: Final answer
    x = 2,978,392.17

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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.