Home / 104,139,114.12-156,213,653.22-85,909,506.84

Finding the Fourth Proportional to 104,139,114.12, 156,213,653.22 and 85,909,506.84

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Solution

The fourth proportional to 104,139,114.12, 156,213,653.22 and 85,909,506.84 is: 128,868,370.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,139,114.12 : 156,213,653.22 = 85,909,506.84 : x
  2. Step 2: Convert to fraction form
    104,139,114.12/156,213,653.22 = 85,909,506.84/x
  3. Step 3: Cross multiply
    104,139,114.12x = 156,213,653.22 × 85,909,506.84
  4. Step 4: Simplify right side
    104,139,114.12x = 13,420,237,909,804,978
  5. Step 5: Solve for x
    x = 13,420,237,909,804,978/104,139,114.12
  6. Step 6: Final answer
    x = 128,868,370.19

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1.5x scale

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.