Home / 5,185,524.20-7,774,599.90-1,989,415.40

Finding the Fourth Proportional to 5,185,524.20, 7,774,599.90 and 1,989,415.40

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Solution

The fourth proportional to 5,185,524.20, 7,774,599.90 and 1,989,415.40 is: 2,982,708.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185,524.20 : 7,774,599.90 = 1,989,415.40 : x
  2. Step 2: Convert to fraction form
    5,185,524.20/7,774,599.90 = 1,989,415.40/x
  3. Step 3: Cross multiply
    5,185,524.20x = 7,774,599.90 × 1,989,415.40
  4. Step 4: Simplify right side
    5,185,524.20x = 15,466,908,769,898.46
  5. Step 5: Solve for x
    x = 15,466,908,769,898.46/5,185,524.20
  6. Step 6: Final answer
    x = 2,982,708.82

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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.