Home / 688,076,412.09-949,514,818.07-401,994,454.88

Finding the Fourth Proportional to 688,076,412.09, 949,514,818.07 and 401,994,454.88

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Solution

The fourth proportional to 688,076,412.09, 949,514,818.07 and 401,994,454.88 is: 554,734,452.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,076,412.09 : 949,514,818.07 = 401,994,454.88 : x
  2. Step 2: Convert to fraction form
    688,076,412.09/949,514,818.07 = 401,994,454.88/x
  3. Step 3: Cross multiply
    688,076,412.09x = 949,514,818.07 × 401,994,454.88
  4. Step 4: Simplify right side
    688,076,412.09x = 381,699,691,690,532,032
  5. Step 5: Solve for x
    x = 381,699,691,690,532,032/688,076,412.09
  6. Step 6: Final answer
    x = 554,734,452.43

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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.