Home / 131,098,644.40-196,871,915.40-85,860,986.80

Finding the Fourth Proportional to 131,098,644.40, 196,871,915.40 and 85,860,986.80

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Solution

The fourth proportional to 131,098,644.40, 196,871,915.40 and 85,860,986.80 is: 128,938,151.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,098,644.40 : 196,871,915.40 = 85,860,986.80 : x
  2. Step 2: Convert to fraction form
    131,098,644.40/196,871,915.40 = 85,860,986.80/x
  3. Step 3: Cross multiply
    131,098,644.40x = 196,871,915.40 × 85,860,986.80
  4. Step 4: Simplify right side
    131,098,644.40x = 16,903,616,929,450,116
  5. Step 5: Solve for x
    x = 16,903,616,929,450,116/131,098,644.40
  6. Step 6: Final answer
    x = 128,938,151.93

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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.