Home / 15,264,442,651.44-21,064,628,769.39-8,490,115,509.15

Finding the Fourth Proportional to 15,264,442,651.44, 21,064,628,769.39 and 8,490,115,509.15

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Solution

The fourth proportional to 15,264,442,651.44, 21,064,628,769.39 and 8,490,115,509.15 is: 11,716,191,379.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,264,442,651.44 : 21,064,628,769.39 = 8,490,115,509.15 : x
  2. Step 2: Convert to fraction form
    15,264,442,651.44/21,064,628,769.39 = 8,490,115,509.15/x
  3. Step 3: Cross multiply
    15,264,442,651.44x = 21,064,628,769.39 × 8,490,115,509.15
  4. Step 4: Simplify right side
    15,264,442,651.44x = 178,841,131,409,485,299,712
  5. Step 5: Solve for x
    x = 178,841,131,409,485,299,712/15,264,442,651.44
  6. Step 6: Final answer
    x = 11,716,191,379.75

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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.