Home / 4,939,915.20-7,409,872.80-1,947,710.40

Finding the Fourth Proportional to 4,939,915.20, 7,409,872.80 and 1,947,710.40

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Solution

The fourth proportional to 4,939,915.20, 7,409,872.80 and 1,947,710.40 is: 2,921,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939,915.20 : 7,409,872.80 = 1,947,710.40 : x
  2. Step 2: Convert to fraction form
    4,939,915.20/7,409,872.80 = 1,947,710.40/x
  3. Step 3: Cross multiply
    4,939,915.20x = 7,409,872.80 × 1,947,710.40
  4. Step 4: Simplify right side
    4,939,915.20x = 14,432,286,315,237.12
  5. Step 5: Solve for x
    x = 14,432,286,315,237.12/4,939,915.20
  6. Step 6: Final answer
    x = 2,921,565.60

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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.