Home / 30,803,380.20-42,495,321.06-18,573,442.92

Finding the Fourth Proportional to 30,803,380.20, 42,495,321.06 and 18,573,442.92

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Solution

The fourth proportional to 30,803,380.20, 42,495,321.06 and 18,573,442.92 is: 25,623,305.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,803,380.20 : 42,495,321.06 = 18,573,442.92 : x
  2. Step 2: Convert to fraction form
    30,803,380.20/42,495,321.06 = 18,573,442.92/x
  3. Step 3: Cross multiply
    30,803,380.20x = 42,495,321.06 × 18,573,442.92
  4. Step 4: Simplify right side
    30,803,380.20x = 789,284,420,074,984
  5. Step 5: Solve for x
    x = 789,284,420,074,984/30,803,380.20
  6. Step 6: Final answer
    x = 25,623,305.46

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1.5x scale

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.