Home / 666,251,640,146.95-919,427,263,402.75-381,110,160,242.87

Finding the Fourth Proportional to 666,251,640,146.95, 919,427,263,402.75 and 381,110,160,242.87

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Solution

The fourth proportional to 666,251,640,146.95, 919,427,263,402.75 and 381,110,160,242.87 is: 525,932,021,135.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,251,640,146.95 : 919,427,263,402.75 = 381,110,160,242.87 : x
  2. Step 2: Convert to fraction form
    666,251,640,146.95/919,427,263,402.75 = 381,110,160,242.87/x
  3. Step 3: Cross multiply
    666,251,640,146.95x = 919,427,263,402.75 × 381,110,160,242.87
  4. Step 4: Simplify right side
    666,251,640,146.95x = 350,403,071,687,085,510,361,088
  5. Step 5: Solve for x
    x = 350,403,071,687,085,510,361,088/666,251,640,146.95
  6. Step 6: Final answer
    x = 525,932,021,135.14

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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.