Home / 290,352,013.80-435,528,020.70-187,559,514.60

Finding the Fourth Proportional to 290,352,013.80, 435,528,020.70 and 187,559,514.60

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Solution

The fourth proportional to 290,352,013.80, 435,528,020.70 and 187,559,514.60 is: 281,339,271.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,352,013.80 : 435,528,020.70 = 187,559,514.60 : x
  2. Step 2: Convert to fraction form
    290,352,013.80/435,528,020.70 = 187,559,514.60/x
  3. Step 3: Cross multiply
    290,352,013.80x = 435,528,020.70 × 187,559,514.60
  4. Step 4: Simplify right side
    290,352,013.80x = 81,687,424,157,190,752
  5. Step 5: Solve for x
    x = 81,687,424,157,190,752/290,352,013.80
  6. Step 6: Final answer
    x = 281,339,271.90

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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.