Home / 776,186,538.36-1,071,620,916.66-494,088,207.72

Finding the Fourth Proportional to 776,186,538.36, 1,071,620,916.66 and 494,088,207.72

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Solution

The fourth proportional to 776,186,538.36, 1,071,620,916.66 and 494,088,207.72 is: 682,149,498.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,186,538.36 : 1,071,620,916.66 = 494,088,207.72 : x
  2. Step 2: Convert to fraction form
    776,186,538.36/1,071,620,916.66 = 494,088,207.72/x
  3. Step 3: Cross multiply
    776,186,538.36x = 1,071,620,916.66 × 494,088,207.72
  4. Step 4: Simplify right side
    776,186,538.36x = 529,475,258,067,802,880
  5. Step 5: Solve for x
    x = 529,475,258,067,802,880/776,186,538.36
  6. Step 6: Final answer
    x = 682,149,498.74

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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.