Home / 688,076,404.66-949,514,807.79-401,994,447.44

Finding the Fourth Proportional to 688,076,404.66, 949,514,807.79 and 401,994,447.44

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Solution

The fourth proportional to 688,076,404.66, 949,514,807.79 and 401,994,447.44 is: 554,734,442.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,076,404.66 : 949,514,807.79 = 401,994,447.44 : x
  2. Step 2: Convert to fraction form
    688,076,404.66/949,514,807.79 = 401,994,447.44/x
  3. Step 3: Cross multiply
    688,076,404.66x = 949,514,807.79 × 401,994,447.44
  4. Step 4: Simplify right side
    688,076,404.66x = 381,699,680,493,638,848
  5. Step 5: Solve for x
    x = 381,699,680,493,638,848/688,076,404.66
  6. Step 6: Final answer
    x = 554,734,442.15

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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.