Home / 688,076,414.09-949,514,820.83-401,994,456.88

Finding the Fourth Proportional to 688,076,414.09, 949,514,820.83 and 401,994,456.88

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Solution

The fourth proportional to 688,076,414.09, 949,514,820.83 and 401,994,456.88 is: 554,734,455.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,076,414.09 : 949,514,820.83 = 401,994,456.88 : x
  2. Step 2: Convert to fraction form
    688,076,414.09/949,514,820.83 = 401,994,456.88/x
  3. Step 3: Cross multiply
    688,076,414.09x = 949,514,820.83 × 401,994,456.88
  4. Step 4: Simplify right side
    688,076,414.09x = 381,699,694,699,066,368
  5. Step 5: Solve for x
    x = 381,699,694,699,066,368/688,076,414.09
  6. Step 6: Final answer
    x = 554,734,455.19

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1.5x scale

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.