Home / 15,365,428,409.22-21,197,798,231.64-10,286,428,715.88

Finding the Fourth Proportional to 15,365,428,409.22, 21,197,798,231.64 and 10,286,428,715.88

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Solution

The fourth proportional to 15,365,428,409.22, 21,197,798,231.64 and 10,286,428,715.88 is: 14,190,924,889.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365,428,409.22 : 21,197,798,231.64 = 10,286,428,715.88 : x
  2. Step 2: Convert to fraction form
    15,365,428,409.22/21,197,798,231.64 = 10,286,428,715.88/x
  3. Step 3: Cross multiply
    15,365,428,409.22x = 21,197,798,231.64 × 10,286,428,715.88
  4. Step 4: Simplify right side
    15,365,428,409.22x = 218,049,640,443,371,945,984
  5. Step 5: Solve for x
    x = 218,049,640,443,371,945,984/15,365,428,409.22
  6. Step 6: Final answer
    x = 14,190,924,889.05

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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.