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Finding the Fourth Proportional to 3,359,398,078.80, 5,039,852,945.40 and 1,978,501,784.40

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Solution

The fourth proportional to 3,359,398,078.80, 5,039,852,945.40 and 1,978,501,784.40 is: 2,968,197,817.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,359,398,078.80 : 5,039,852,945.40 = 1,978,501,784.40 : x
  2. Step 2: Convert to fraction form
    3,359,398,078.80/5,039,852,945.40 = 1,978,501,784.40/x
  3. Step 3: Cross multiply
    3,359,398,078.80x = 5,039,852,945.40 × 1,978,501,784.40
  4. Step 4: Simplify right side
    3,359,398,078.80x = 9,971,358,045,587,494,912
  5. Step 5: Solve for x
    x = 9,971,358,045,587,494,912/3,359,398,078.80
  6. Step 6: Final answer
    x = 2,968,197,817.49

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1.5x scale

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.