Home / 30,690,042.21-42,349,242.96-16,938,120.60

Finding the Fourth Proportional to 30,690,042.21, 42,349,242.96 and 16,938,120.60

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Solution

The fourth proportional to 30,690,042.21, 42,349,242.96 and 16,938,120.60 is: 23,372,942.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,690,042.21 : 42,349,242.96 = 16,938,120.60 : x
  2. Step 2: Convert to fraction form
    30,690,042.21/42,349,242.96 = 16,938,120.60/x
  3. Step 3: Cross multiply
    30,690,042.21x = 42,349,242.96 × 16,938,120.60
  4. Step 4: Simplify right side
    30,690,042.21x = 717,316,584,575,181
  5. Step 5: Solve for x
    x = 717,316,584,575,181/30,690,042.21
  6. Step 6: Final answer
    x = 23,372,942.26

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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.