Home / 688,076,410.09-949,514,815.31-401,994,452.88

Finding the Fourth Proportional to 688,076,410.09, 949,514,815.31 and 401,994,452.88

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Solution

The fourth proportional to 688,076,410.09, 949,514,815.31 and 401,994,452.88 is: 554,734,449.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,076,410.09 : 949,514,815.31 = 401,994,452.88 : x
  2. Step 2: Convert to fraction form
    688,076,410.09/949,514,815.31 = 401,994,452.88/x
  3. Step 3: Cross multiply
    688,076,410.09x = 949,514,815.31 × 401,994,452.88
  4. Step 4: Simplify right side
    688,076,410.09x = 381,699,688,677,250,112
  5. Step 5: Solve for x
    x = 381,699,688,677,250,112/688,076,410.09
  6. Step 6: Final answer
    x = 554,734,449.66

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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.