Home / 393,077,013,628.62-589,674,475,087.70-138,061,449,317.48

Finding the Fourth Proportional to 393,077,013,628.62, 589,674,475,087.70 and 138,061,449,317.48

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Solution

The fourth proportional to 393,077,013,628.62, 589,674,475,087.70 and 138,061,449,317.48 is: 207,112,880,767.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,077,013,628.62 : 589,674,475,087.70 = 138,061,449,317.48 : x
  2. Step 2: Convert to fraction form
    393,077,013,628.62/589,674,475,087.70 = 138,061,449,317.48/x
  3. Step 3: Cross multiply
    393,077,013,628.62x = 589,674,475,087.70 × 138,061,449,317.48
  4. Step 4: Simplify right side
    393,077,013,628.62x = 81,411,312,656,132,119,461,888
  5. Step 5: Solve for x
    x = 81,411,312,656,132,119,461,888/393,077,013,628.62
  6. Step 6: Final answer
    x = 207,112,880,767.56

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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.