Home / 290,339,713.80-435,509,570.70-217,780,302.60

Finding the Fourth Proportional to 290,339,713.80, 435,509,570.70 and 217,780,302.60

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Solution

The fourth proportional to 290,339,713.80, 435,509,570.70 and 217,780,302.60 is: 326,670,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,339,713.80 : 435,509,570.70 = 217,780,302.60 : x
  2. Step 2: Convert to fraction form
    290,339,713.80/435,509,570.70 = 217,780,302.60/x
  3. Step 3: Cross multiply
    290,339,713.80x = 435,509,570.70 × 217,780,302.60
  4. Step 4: Simplify right side
    290,339,713.80x = 94,845,406,092,242,096
  5. Step 5: Solve for x
    x = 94,845,406,092,242,096/290,339,713.80
  6. Step 6: Final answer
    x = 326,670,453.90

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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.