Home / 688,076,413.09-949,514,819.45-401,994,455.88

Finding the Fourth Proportional to 688,076,413.09, 949,514,819.45 and 401,994,455.88

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Solution

The fourth proportional to 688,076,413.09, 949,514,819.45 and 401,994,455.88 is: 554,734,453.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,076,413.09 : 949,514,819.45 = 401,994,455.88 : x
  2. Step 2: Convert to fraction form
    688,076,413.09/949,514,819.45 = 401,994,455.88/x
  3. Step 3: Cross multiply
    688,076,413.09x = 949,514,819.45 × 401,994,455.88
  4. Step 4: Simplify right side
    688,076,413.09x = 381,699,693,194,799,232
  5. Step 5: Solve for x
    x = 381,699,693,194,799,232/688,076,413.09
  6. Step 6: Final answer
    x = 554,734,453.81

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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.