Home / 4,920,985.70-7,381,478.55-2,759,792.30

Finding the Fourth Proportional to 4,920,985.70, 7,381,478.55 and 2,759,792.30

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Solution

The fourth proportional to 4,920,985.70, 7,381,478.55 and 2,759,792.30 is: 4,139,688.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920,985.70 : 7,381,478.55 = 2,759,792.30 : x
  2. Step 2: Convert to fraction form
    4,920,985.70/7,381,478.55 = 2,759,792.30/x
  3. Step 3: Cross multiply
    4,920,985.70x = 7,381,478.55 × 2,759,792.30
  4. Step 4: Simplify right side
    4,920,985.70x = 20,371,347,664,905.16
  5. Step 5: Solve for x
    x = 20,371,347,664,905.16/4,920,985.70
  6. Step 6: Final answer
    x = 4,139,688.45

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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.