Home / 393,077,013,638.38-589,674,475,102.34-138,061,449,327.28

Finding the Fourth Proportional to 393,077,013,638.38, 589,674,475,102.34 and 138,061,449,327.28

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Solution

The fourth proportional to 393,077,013,638.38, 589,674,475,102.34 and 138,061,449,327.28 is: 207,112,880,782.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,077,013,638.38 : 589,674,475,102.34 = 138,061,449,327.28 : x
  2. Step 2: Convert to fraction form
    393,077,013,638.38/589,674,475,102.34 = 138,061,449,327.28/x
  3. Step 3: Cross multiply
    393,077,013,638.38x = 589,674,475,102.34 × 138,061,449,327.28
  4. Step 4: Simplify right side
    393,077,013,638.38x = 81,411,312,663,932,132,392,960
  5. Step 5: Solve for x
    x = 81,411,312,663,932,132,392,960/393,077,013,638.38
  6. Step 6: Final answer
    x = 207,112,880,782.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.