Home / 776,270,986.78-1,071,245,837.10-423,845,885.20

Finding the Fourth Proportional to 776,270,986.78, 1,071,245,837.10 and 423,845,885.20

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Solution

The fourth proportional to 776,270,986.78, 1,071,245,837.10 and 423,845,885.20 is: 584,902,885.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,270,986.78 : 1,071,245,837.10 = 423,845,885.20 : x
  2. Step 2: Convert to fraction form
    776,270,986.78/1,071,245,837.10 = 423,845,885.20/x
  3. Step 3: Cross multiply
    776,270,986.78x = 1,071,245,837.10 × 423,845,885.20
  4. Step 4: Simplify right side
    776,270,986.78x = 454,043,140,092,464,512
  5. Step 5: Solve for x
    x = 454,043,140,092,464,512/776,270,986.78
  6. Step 6: Final answer
    x = 584,902,885.49

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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.