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Finding the Fourth Proportional to 488,448,210.80, 685,641,480.40 and 488,448,210.80

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Solution

The fourth proportional to 488,448,210.80, 685,641,480.40 and 488,448,210.80 is: 685,641,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,448,210.80 : 685,641,480.40 = 488,448,210.80 : x
  2. Step 2: Convert to fraction form
    488,448,210.80/685,641,480.40 = 488,448,210.80/x
  3. Step 3: Cross multiply
    488,448,210.80x = 685,641,480.40 × 488,448,210.80
  4. Step 4: Simplify right side
    488,448,210.80x = 334,900,354,351,643,264
  5. Step 5: Solve for x
    x = 334,900,354,351,643,264/488,448,210.80
  6. Step 6: Final answer
    x = 685,641,480.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.