Home / 21,042,984,291.25-29,039,087,137.60-11,397,474,294.63

Finding the Fourth Proportional to 21,042,984,291.25, 29,039,087,137.60 and 11,397,474,294.63

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Solution

The fourth proportional to 21,042,984,291.25, 29,039,087,137.60 and 11,397,474,294.63 is: 15,728,389,310.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042,984,291.25 : 29,039,087,137.60 = 11,397,474,294.63 : x
  2. Step 2: Convert to fraction form
    21,042,984,291.25/29,039,087,137.60 = 11,397,474,294.63/x
  3. Step 3: Cross multiply
    21,042,984,291.25x = 29,039,087,137.60 × 11,397,474,294.63
  4. Step 4: Simplify right side
    21,042,984,291.25x = 330,972,249,190,194,282,496
  5. Step 5: Solve for x
    x = 330,972,249,190,194,282,496/21,042,984,291.25
  6. Step 6: Final answer
    x = 15,728,389,310.63

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1.5x scale

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.