Home / 511,008,541.56-766,518,915.60-142,521,074.13

Finding the Fourth Proportional to 511,008,541.56, 766,518,915.60 and 142,521,074.13

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Solution

The fourth proportional to 511,008,541.56, 766,518,915.60 and 142,521,074.13 is: 213,783,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,008,541.56 : 766,518,915.60 = 142,521,074.13 : x
  2. Step 2: Convert to fraction form
    511,008,541.56/766,518,915.60 = 142,521,074.13/x
  3. Step 3: Cross multiply
    511,008,541.56x = 766,518,915.60 × 142,521,074.13
  4. Step 4: Simplify right side
    511,008,541.56x = 109,245,099,191,247,600
  5. Step 5: Solve for x
    x = 109,245,099,191,247,600/511,008,541.56
  6. Step 6: Final answer
    x = 213,783,313.40

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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.