Home / 2,938,562,985.78-4,055,216,921.64-1,618,463,541.78

Finding the Fourth Proportional to 2,938,562,985.78, 4,055,216,921.64 and 1,618,463,541.78

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Solution

The fourth proportional to 2,938,562,985.78, 4,055,216,921.64 and 1,618,463,541.78 is: 2,233,479,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938,562,985.78 : 4,055,216,921.64 = 1,618,463,541.78 : x
  2. Step 2: Convert to fraction form
    2,938,562,985.78/4,055,216,921.64 = 1,618,463,541.78/x
  3. Step 3: Cross multiply
    2,938,562,985.78x = 4,055,216,921.64 × 1,618,463,541.78
  4. Step 4: Simplify right side
    2,938,562,985.78x = 6,563,220,741,683,662,848
  5. Step 5: Solve for x
    x = 6,563,220,741,683,662,848/2,938,562,985.78
  6. Step 6: Final answer
    x = 2,233,479,688.35

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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.