Home / 145,122,290.40-200,261,202.48-90,116,974.56

Finding the Fourth Proportional to 145,122,290.40, 200,261,202.48 and 90,116,974.56

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Solution

The fourth proportional to 145,122,290.40, 200,261,202.48 and 90,116,974.56 is: 124,356,731.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,122,290.40 : 200,261,202.48 = 90,116,974.56 : x
  2. Step 2: Convert to fraction form
    145,122,290.40/200,261,202.48 = 90,116,974.56/x
  3. Step 3: Cross multiply
    145,122,290.40x = 200,261,202.48 × 90,116,974.56
  4. Step 4: Simplify right side
    145,122,290.40x = 18,046,933,689,245,168
  5. Step 5: Solve for x
    x = 18,046,933,689,245,168/145,122,290.40
  6. Step 6: Final answer
    x = 124,356,731.41

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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.