Home / 18,702,923,315.12-25,810,026,019.44-10,129,350,348.08

Finding the Fourth Proportional to 18,702,923,315.12, 25,810,026,019.44 and 10,129,350,348.08

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Solution

The fourth proportional to 18,702,923,315.12, 25,810,026,019.44 and 10,129,350,348.08 is: 13,978,499,063.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702,923,315.12 : 25,810,026,019.44 = 10,129,350,348.08 : x
  2. Step 2: Convert to fraction form
    18,702,923,315.12/25,810,026,019.44 = 10,129,350,348.08/x
  3. Step 3: Cross multiply
    18,702,923,315.12x = 25,810,026,019.44 × 10,129,350,348.08
  4. Step 4: Simplify right side
    18,702,923,315.12x = 261,438,796,043,968,413,696
  5. Step 5: Solve for x
    x = 261,438,796,043,968,413,696/18,702,923,315.12
  6. Step 6: Final answer
    x = 13,978,499,063.44

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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.