Home / 30,266,138.70-45,399,208.05-18,149,283.90

Finding the Fourth Proportional to 30,266,138.70, 45,399,208.05 and 18,149,283.90

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Solution

The fourth proportional to 30,266,138.70, 45,399,208.05 and 18,149,283.90 is: 27,223,925.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,266,138.70 : 45,399,208.05 = 18,149,283.90 : x
  2. Step 2: Convert to fraction form
    30,266,138.70/45,399,208.05 = 18,149,283.90/x
  3. Step 3: Cross multiply
    30,266,138.70x = 45,399,208.05 × 18,149,283.90
  4. Step 4: Simplify right side
    30,266,138.70x = 823,963,115,734,615.25
  5. Step 5: Solve for x
    x = 823,963,115,734,615.25/30,266,138.70
  6. Step 6: Final answer
    x = 27,223,925.85

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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.