Home / 668,045,091,924.32-921,932,584,687.16-393,702,323,079.20

Finding the Fourth Proportional to 668,045,091,924.32, 921,932,584,687.16 and 393,702,323,079.20

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Solution

The fourth proportional to 668,045,091,924.32, 921,932,584,687.16 and 393,702,323,079.20 is: 543,327,096,780.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,045,091,924.32 : 921,932,584,687.16 = 393,702,323,079.20 : x
  2. Step 2: Convert to fraction form
    668,045,091,924.32/921,932,584,687.16 = 393,702,323,079.20/x
  3. Step 3: Cross multiply
    668,045,091,924.32x = 921,932,584,687.16 × 393,702,323,079.20
  4. Step 4: Simplify right side
    668,045,091,924.32x = 362,967,000,313,746,203,607,040
  5. Step 5: Solve for x
    x = 362,967,000,313,746,203,607,040/668,045,091,924.32
  6. Step 6: Final answer
    x = 543,327,096,780.57

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Double scale
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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.