Home / 189,359,785.40-284,039,678.10-108,738,217.40

Finding the Fourth Proportional to 189,359,785.40, 284,039,678.10 and 108,738,217.40

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Solution

The fourth proportional to 189,359,785.40, 284,039,678.10 and 108,738,217.40 is: 163,107,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,359,785.40 : 284,039,678.10 = 108,738,217.40 : x
  2. Step 2: Convert to fraction form
    189,359,785.40/284,039,678.10 = 108,738,217.40/x
  3. Step 3: Cross multiply
    189,359,785.40x = 284,039,678.10 × 108,738,217.40
  4. Step 4: Simplify right side
    189,359,785.40x = 30,885,968,267,463,824
  5. Step 5: Solve for x
    x = 30,885,968,267,463,824/189,359,785.40
  6. Step 6: Final answer
    x = 163,107,326.10

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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.