Home / 147,620,485.80-221,430,728.70-70,925,020.20

Finding the Fourth Proportional to 147,620,485.80, 221,430,728.70 and 70,925,020.20

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Solution

The fourth proportional to 147,620,485.80, 221,430,728.70 and 70,925,020.20 is: 106,387,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,620,485.80 : 221,430,728.70 = 70,925,020.20 : x
  2. Step 2: Convert to fraction form
    147,620,485.80/221,430,728.70 = 70,925,020.20/x
  3. Step 3: Cross multiply
    147,620,485.80x = 221,430,728.70 × 70,925,020.20
  4. Step 4: Simplify right side
    147,620,485.80x = 15,704,978,905,948,220
  5. Step 5: Solve for x
    x = 15,704,978,905,948,220/147,620,485.80
  6. Step 6: Final answer
    x = 106,387,530.30

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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.