Home / 21,210,263,955.65-29,271,470,745.23-11,694,786,278.60

Finding the Fourth Proportional to 21,210,263,955.65, 29,271,470,745.23 and 11,694,786,278.60

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Solution

The fourth proportional to 21,210,263,955.65, 29,271,470,745.23 and 11,694,786,278.60 is: 16,139,525,427.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,210,263,955.65 : 29,271,470,745.23 = 11,694,786,278.60 : x
  2. Step 2: Convert to fraction form
    21,210,263,955.65/29,271,470,745.23 = 11,694,786,278.60/x
  3. Step 3: Cross multiply
    21,210,263,955.65x = 29,271,470,745.23 × 11,694,786,278.60
  4. Step 4: Simplify right side
    21,210,263,955.65x = 342,323,594,425,862,455,296
  5. Step 5: Solve for x
    x = 342,323,594,425,862,455,296/21,210,263,955.65
  6. Step 6: Final answer
    x = 16,139,525,427.01

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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.