Home / 21,477,381,582.48-29,639,710,594.44-11,961,937,563.36

Finding the Fourth Proportional to 21,477,381,582.48, 29,639,710,594.44 and 11,961,937,563.36

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Solution

The fourth proportional to 21,477,381,582.48, 29,639,710,594.44 and 11,961,937,563.36 is: 16,507,988,469.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477,381,582.48 : 29,639,710,594.44 = 11,961,937,563.36 : x
  2. Step 2: Convert to fraction form
    21,477,381,582.48/29,639,710,594.44 = 11,961,937,563.36/x
  3. Step 3: Cross multiply
    21,477,381,582.48x = 29,639,710,594.44 × 11,961,937,563.36
  4. Step 4: Simplify right side
    21,477,381,582.48x = 354,548,367,526,751,174,656
  5. Step 5: Solve for x
    x = 354,548,367,526,751,174,656/21,477,381,582.48
  6. Step 6: Final answer
    x = 16,507,988,469.88

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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.