Home / 30,525,643.60-42,116,202.12-18,298,039.12

Finding the Fourth Proportional to 30,525,643.60, 42,116,202.12 and 18,298,039.12

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Solution

The fourth proportional to 30,525,643.60, 42,116,202.12 and 18,298,039.12 is: 25,245,787.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,525,643.60 : 42,116,202.12 = 18,298,039.12 : x
  2. Step 2: Convert to fraction form
    30,525,643.60/42,116,202.12 = 18,298,039.12/x
  3. Step 3: Cross multiply
    30,525,643.60x = 42,116,202.12 × 18,298,039.12
  4. Step 4: Simplify right side
    30,525,643.60x = 770,643,913,977,586.88
  5. Step 5: Solve for x
    x = 770,643,913,977,586.88/30,525,643.60
  6. Step 6: Final answer
    x = 25,245,787.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.