Home / 306,389,037.72-422,816,389.76-167,159,811.80

Finding the Fourth Proportional to 306,389,037.72, 422,816,389.76 and 167,159,811.80

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Solution

The fourth proportional to 306,389,037.72, 422,816,389.76 and 167,159,811.80 is: 230,680,277.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,389,037.72 : 422,816,389.76 = 167,159,811.80 : x
  2. Step 2: Convert to fraction form
    306,389,037.72/422,816,389.76 = 167,159,811.80/x
  3. Step 3: Cross multiply
    306,389,037.72x = 422,816,389.76 × 167,159,811.80
  4. Step 4: Simplify right side
    306,389,037.72x = 70,677,908,138,237,048
  5. Step 5: Solve for x
    x = 70,677,908,138,237,048/306,389,037.72
  6. Step 6: Final answer
    x = 230,680,277.15

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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.