Home / 4,920,999.90-7,381,499.85-4,123,838.40

Finding the Fourth Proportional to 4,920,999.90, 7,381,499.85 and 4,123,838.40

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Solution

The fourth proportional to 4,920,999.90, 7,381,499.85 and 4,123,838.40 is: 6,185,757.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920,999.90 : 7,381,499.85 = 4,123,838.40 : x
  2. Step 2: Convert to fraction form
    4,920,999.90/7,381,499.85 = 4,123,838.40/x
  3. Step 3: Cross multiply
    4,920,999.90x = 7,381,499.85 × 4,123,838.40
  4. Step 4: Simplify right side
    4,920,999.90x = 30,440,112,531,024.24
  5. Step 5: Solve for x
    x = 30,440,112,531,024.24/4,920,999.90
  6. Step 6: Final answer
    x = 6,185,757.60

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1.5x scale

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.