Home / 147,623,638.40-221,498,443.20-70,907,177.60

Finding the Fourth Proportional to 147,623,638.40, 221,498,443.20 and 70,907,177.60

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Solution

The fourth proportional to 147,623,638.40, 221,498,443.20 and 70,907,177.60 is: 106,391,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,623,638.40 : 221,498,443.20 = 70,907,177.60 : x
  2. Step 2: Convert to fraction form
    147,623,638.40/221,498,443.20 = 70,907,177.60/x
  3. Step 3: Cross multiply
    147,623,638.40x = 221,498,443.20 × 70,907,177.60
  4. Step 4: Simplify right side
    147,623,638.40x = 15,705,829,450,105,910
  5. Step 5: Solve for x
    x = 15,705,829,450,105,910/147,623,638.40
  6. Step 6: Final answer
    x = 106,391,019.90

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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.