Home / 688,076,402.15-949,514,804.35-401,994,444.94

Finding the Fourth Proportional to 688,076,402.15, 949,514,804.35 and 401,994,444.94

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Solution

The fourth proportional to 688,076,402.15, 949,514,804.35 and 401,994,444.94 is: 554,734,438.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,076,402.15 : 949,514,804.35 = 401,994,444.94 : x
  2. Step 2: Convert to fraction form
    688,076,402.15/949,514,804.35 = 401,994,444.94/x
  3. Step 3: Cross multiply
    688,076,402.15x = 949,514,804.35 × 401,994,444.94
  4. Step 4: Simplify right side
    688,076,402.15x = 381,699,676,733,612,160
  5. Step 5: Solve for x
    x = 381,699,676,733,612,160/688,076,402.15
  6. Step 6: Final answer
    x = 554,734,438.70

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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.