Home / 15,365,428,412.24-21,197,798,235.78-10,286,428,718.88

Finding the Fourth Proportional to 15,365,428,412.24, 21,197,798,235.78 and 10,286,428,718.88

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Solution

The fourth proportional to 15,365,428,412.24, 21,197,798,235.78 and 10,286,428,718.88 is: 14,190,924,893.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365,428,412.24 : 21,197,798,235.78 = 10,286,428,718.88 : x
  2. Step 2: Convert to fraction form
    15,365,428,412.24/21,197,798,235.78 = 10,286,428,718.88/x
  3. Step 3: Cross multiply
    15,365,428,412.24x = 21,197,798,235.78 × 10,286,428,718.88
  4. Step 4: Simplify right side
    15,365,428,412.24x = 218,049,640,549,551,144,960
  5. Step 5: Solve for x
    x = 218,049,640,549,551,144,960/15,365,428,412.24
  6. Step 6: Final answer
    x = 14,190,924,893.17

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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.