Home / 666,251,640,146.45-919,427,263,402.05-381,110,160,242.37

Finding the Fourth Proportional to 666,251,640,146.45, 919,427,263,402.05 and 381,110,160,242.37

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Solution

The fourth proportional to 666,251,640,146.45, 919,427,263,402.05 and 381,110,160,242.37 is: 525,932,021,134.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,251,640,146.45 : 919,427,263,402.05 = 381,110,160,242.37 : x
  2. Step 2: Convert to fraction form
    666,251,640,146.45/919,427,263,402.05 = 381,110,160,242.37/x
  3. Step 3: Cross multiply
    666,251,640,146.45x = 919,427,263,402.05 × 381,110,160,242.37
  4. Step 4: Simplify right side
    666,251,640,146.45x = 350,403,071,686,358,989,799,424
  5. Step 5: Solve for x
    x = 350,403,071,686,358,989,799,424/666,251,640,146.45
  6. Step 6: Final answer
    x = 525,932,021,134.44

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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.