Home / 120,122,907.40-180,184,361.10-43,457,768.20

Finding the Fourth Proportional to 120,122,907.40, 180,184,361.10 and 43,457,768.20

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Solution

The fourth proportional to 120,122,907.40, 180,184,361.10 and 43,457,768.20 is: 65,186,652.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,122,907.40 : 180,184,361.10 = 43,457,768.20 : x
  2. Step 2: Convert to fraction form
    120,122,907.40/180,184,361.10 = 43,457,768.20/x
  3. Step 3: Cross multiply
    120,122,907.40x = 180,184,361.10 × 43,457,768.20
  4. Step 4: Simplify right side
    120,122,907.40x = 7,830,410,197,948,897
  5. Step 5: Solve for x
    x = 7,830,410,197,948,897/120,122,907.40
  6. Step 6: Final answer
    x = 65,186,652.30

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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.