Home / 688,076,403.66-949,514,806.41-401,994,446.44

Finding the Fourth Proportional to 688,076,403.66, 949,514,806.41 and 401,994,446.44

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Solution

The fourth proportional to 688,076,403.66, 949,514,806.41 and 401,994,446.44 is: 554,734,440.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,076,403.66 : 949,514,806.41 = 401,994,446.44 : x
  2. Step 2: Convert to fraction form
    688,076,403.66/949,514,806.41 = 401,994,446.44/x
  3. Step 3: Cross multiply
    688,076,403.66x = 949,514,806.41 × 401,994,446.44
  4. Step 4: Simplify right side
    688,076,403.66x = 381,699,678,989,371,712
  5. Step 5: Solve for x
    x = 381,699,678,989,371,712/688,076,403.66
  6. Step 6: Final answer
    x = 554,734,440.77

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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.