Home / 12,492,057.90-18,738,086.85-7,705,152.30

Finding the Fourth Proportional to 12,492,057.90, 18,738,086.85 and 7,705,152.30

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Solution

The fourth proportional to 12,492,057.90, 18,738,086.85 and 7,705,152.30 is: 11,557,728.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492,057.90 : 18,738,086.85 = 7,705,152.30 : x
  2. Step 2: Convert to fraction form
    12,492,057.90/18,738,086.85 = 7,705,152.30/x
  3. Step 3: Cross multiply
    12,492,057.90x = 18,738,086.85 × 7,705,152.30
  4. Step 4: Simplify right side
    12,492,057.90x = 144,379,812,989,877.25
  5. Step 5: Solve for x
    x = 144,379,812,989,877.25/12,492,057.90
  6. Step 6: Final answer
    x = 11,557,728.45

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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.