Home / 709,227,491,323.77-978,734,881,871.69-384,067,343,907.22

Finding the Fourth Proportional to 709,227,491,323.77, 978,734,881,871.69 and 384,067,343,907.22

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Solution

The fourth proportional to 709,227,491,323.77, 978,734,881,871.69 and 384,067,343,907.22 is: 530,013,445,711.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,227,491,323.77 : 978,734,881,871.69 = 384,067,343,907.22 : x
  2. Step 2: Convert to fraction form
    709,227,491,323.77/978,734,881,871.69 = 384,067,343,907.22/x
  3. Step 3: Cross multiply
    709,227,491,323.77x = 978,734,881,871.69 × 384,067,343,907.22
  4. Step 4: Simplify right side
    709,227,491,323.77x = 375,900,106,469,806,639,677,440
  5. Step 5: Solve for x
    x = 375,900,106,469,806,639,677,440/709,227,491,323.77
  6. Step 6: Final answer
    x = 530,013,445,711.46

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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.