Home / 30,113,142.12-45,144,321.30-13,060,972.44

Finding the Fourth Proportional to 30,113,142.12, 45,144,321.30 and 13,060,972.44

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Solution

The fourth proportional to 30,113,142.12, 45,144,321.30 and 13,060,972.44 is: 19,580,445.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,113,142.12 : 45,144,321.30 = 13,060,972.44 : x
  2. Step 2: Convert to fraction form
    30,113,142.12/45,144,321.30 = 13,060,972.44/x
  3. Step 3: Cross multiply
    30,113,142.12x = 45,144,321.30 × 13,060,972.44
  4. Step 4: Simplify right side
    30,113,142.12x = 589,628,736,321,804.88
  5. Step 5: Solve for x
    x = 589,628,736,321,804.88/30,113,142.12
  6. Step 6: Final answer
    x = 19,580,445.44

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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.