Home / 153,586,885.42-211,945,832.31-90,866,218.60

Finding the Fourth Proportional to 153,586,885.42, 211,945,832.31 and 90,866,218.60

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Solution

The fourth proportional to 153,586,885.42, 211,945,832.31 and 90,866,218.60 is: 125,392,974.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,586,885.42 : 211,945,832.31 = 90,866,218.60 : x
  2. Step 2: Convert to fraction form
    153,586,885.42/211,945,832.31 = 90,866,218.60/x
  3. Step 3: Cross multiply
    153,586,885.42x = 211,945,832.31 × 90,866,218.60
  4. Step 4: Simplify right side
    153,586,885.42x = 19,258,716,330,039,400
  5. Step 5: Solve for x
    x = 19,258,716,330,039,400/153,586,885.42
  6. Step 6: Final answer
    x = 125,392,974.00

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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.