Home / 369,871,977.18-510,431,576.22-211,098,915.54

Finding the Fourth Proportional to 369,871,977.18, 510,431,576.22 and 211,098,915.54

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Solution

The fourth proportional to 369,871,977.18, 510,431,576.22 and 211,098,915.54 is: 291,321,210.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,871,977.18 : 510,431,576.22 = 211,098,915.54 : x
  2. Step 2: Convert to fraction form
    369,871,977.18/510,431,576.22 = 211,098,915.54/x
  3. Step 3: Cross multiply
    369,871,977.18x = 510,431,576.22 × 211,098,915.54
  4. Step 4: Simplify right side
    369,871,977.18x = 107,751,552,197,414,848
  5. Step 5: Solve for x
    x = 107,751,552,197,414,848/369,871,977.18
  6. Step 6: Final answer
    x = 291,321,210.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.