Home / 354,368,087.80-531,552,131.70-217,610,020.60

Finding the Fourth Proportional to 354,368,087.80, 531,552,131.70 and 217,610,020.60

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Solution

The fourth proportional to 354,368,087.80, 531,552,131.70 and 217,610,020.60 is: 326,415,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,368,087.80 : 531,552,131.70 = 217,610,020.60 : x
  2. Step 2: Convert to fraction form
    354,368,087.80/531,552,131.70 = 217,610,020.60/x
  3. Step 3: Cross multiply
    354,368,087.80x = 531,552,131.70 × 217,610,020.60
  4. Step 4: Simplify right side
    354,368,087.80x = 115,671,070,329,210,912
  5. Step 5: Solve for x
    x = 115,671,070,329,210,912/354,368,087.80
  6. Step 6: Final answer
    x = 326,415,030.90

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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.