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Finding the Fourth Proportional to 1,993,104,906.40, 2,989,657,359.60 and 830,843,439.40

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Solution

The fourth proportional to 1,993,104,906.40, 2,989,657,359.60 and 830,843,439.40 is: 1,246,265,159.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,104,906.40 : 2,989,657,359.60 = 830,843,439.40 : x
  2. Step 2: Convert to fraction form
    1,993,104,906.40/2,989,657,359.60 = 830,843,439.40/x
  3. Step 3: Cross multiply
    1,993,104,906.40x = 2,989,657,359.60 × 830,843,439.40
  4. Step 4: Simplify right side
    1,993,104,906.40x = 2,483,937,203,277,586,432
  5. Step 5: Solve for x
    x = 2,483,937,203,277,586,432/1,993,104,906.40
  6. Step 6: Final answer
    x = 1,246,265,159.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.