Home / 685,706,622.56-946,259,044.52-403,467,343.82

Finding the Fourth Proportional to 685,706,622.56, 946,259,044.52 and 403,467,343.82

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Solution

The fourth proportional to 685,706,622.56, 946,259,044.52 and 403,467,343.82 is: 556,775,464.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,706,622.56 : 946,259,044.52 = 403,467,343.82 : x
  2. Step 2: Convert to fraction form
    685,706,622.56/946,259,044.52 = 403,467,343.82/x
  3. Step 3: Cross multiply
    685,706,622.56x = 946,259,044.52 × 403,467,343.82
  4. Step 4: Simplify right side
    685,706,622.56x = 381,784,623,251,386,880
  5. Step 5: Solve for x
    x = 381,784,623,251,386,880/685,706,622.56
  6. Step 6: Final answer
    x = 556,775,464.45

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Double scale
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1.5x scale

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.