Home / 56,917,916.16-78,546,707.73-30,812,414.64

Finding the Fourth Proportional to 56,917,916.16, 78,546,707.73 and 30,812,414.64

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Solution

The fourth proportional to 56,917,916.16, 78,546,707.73 and 30,812,414.64 is: 42,521,123.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,917,916.16 : 78,546,707.73 = 30,812,414.64 : x
  2. Step 2: Convert to fraction form
    56,917,916.16/78,546,707.73 = 30,812,414.64/x
  3. Step 3: Cross multiply
    56,917,916.16x = 78,546,707.73 × 30,812,414.64
  4. Step 4: Simplify right side
    56,917,916.16x = 2,420,213,727,183,653.50
  5. Step 5: Solve for x
    x = 2,420,213,727,183,653.50/56,917,916.16
  6. Step 6: Final answer
    x = 42,521,123.23

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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.