Home / 154,440,899.64-213,141,585.69-87,471,771.06

Finding the Fourth Proportional to 154,440,899.64, 213,141,585.69 and 87,471,771.06

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Solution

The fourth proportional to 154,440,899.64, 213,141,585.69 and 87,471,771.06 is: 120,718,488.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,440,899.64 : 213,141,585.69 = 87,471,771.06 : x
  2. Step 2: Convert to fraction form
    154,440,899.64/213,141,585.69 = 87,471,771.06/x
  3. Step 3: Cross multiply
    154,440,899.64x = 213,141,585.69 × 87,471,771.06
  4. Step 4: Simplify right side
    154,440,899.64x = 18,643,871,986,841,052
  5. Step 5: Solve for x
    x = 18,643,871,986,841,052/154,440,899.64
  6. Step 6: Final answer
    x = 120,718,488.63

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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.