Home / 290,401,120.80-435,601,681.20-263,527,264.80

Finding the Fourth Proportional to 290,401,120.80, 435,601,681.20 and 263,527,264.80

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Solution

The fourth proportional to 290,401,120.80, 435,601,681.20 and 263,527,264.80 is: 395,290,897.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,401,120.80 : 435,601,681.20 = 263,527,264.80 : x
  2. Step 2: Convert to fraction form
    290,401,120.80/435,601,681.20 = 263,527,264.80/x
  3. Step 3: Cross multiply
    290,401,120.80x = 435,601,681.20 × 263,527,264.80
  4. Step 4: Simplify right side
    290,401,120.80x = 114,792,919,588,917,584
  5. Step 5: Solve for x
    x = 114,792,919,588,917,584/290,401,120.80
  6. Step 6: Final answer
    x = 395,290,897.20

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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.