Home / 6,989,652.90-10,478,246.40-2,728,830.15

Finding the Fourth Proportional to 6,989,652.90, 10,478,246.40 and 2,728,830.15

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Solution

The fourth proportional to 6,989,652.90, 10,478,246.40 and 2,728,830.15 is: 4,090,811.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989,652.90 : 10,478,246.40 = 2,728,830.15 : x
  2. Step 2: Convert to fraction form
    6,989,652.90/10,478,246.40 = 2,728,830.15/x
  3. Step 3: Cross multiply
    6,989,652.90x = 10,478,246.40 × 2,728,830.15
  4. Step 4: Simplify right side
    6,989,652.90x = 28,593,354,695,448.96
  5. Step 5: Solve for x
    x = 28,593,354,695,448.96/6,989,652.90
  6. Step 6: Final answer
    x = 4,090,811.82

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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.