Home / 359,616,643.43-495,997,509.32-309,465,391.86

Finding the Fourth Proportional to 359,616,643.43, 495,997,509.32 and 309,465,391.86

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Solution

The fourth proportional to 359,616,643.43, 495,997,509.32 and 309,465,391.86 is: 426,826,918.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,616,643.43 : 495,997,509.32 = 309,465,391.86 : x
  2. Step 2: Convert to fraction form
    359,616,643.43/495,997,509.32 = 309,465,391.86/x
  3. Step 3: Cross multiply
    359,616,643.43x = 495,997,509.32 × 309,465,391.86
  4. Step 4: Simplify right side
    359,616,643.43x = 153,494,063,583,297,792
  5. Step 5: Solve for x
    x = 153,494,063,583,297,792/359,616,643.43
  6. Step 6: Final answer
    x = 426,826,918.02

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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.