Home / 1,392,221,000,169.10-1,921,265,072,623.20-774,910,470,422.49

Finding the Fourth Proportional to 1,392,221,000,169.10, 1,921,265,072,623.20 and 774,910,470,422.49

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Solution

The fourth proportional to 1,392,221,000,169.10, 1,921,265,072,623.20 and 774,910,470,422.49 is: 1,069,376,500,607.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,221,000,169.10 : 1,921,265,072,623.20 = 774,910,470,422.49 : x
  2. Step 2: Convert to fraction form
    1,392,221,000,169.10/1,921,265,072,623.20 = 774,910,470,422.49/x
  3. Step 3: Cross multiply
    1,392,221,000,169.10x = 1,921,265,072,623.20 × 774,910,470,422.49
  4. Step 4: Simplify right side
    1,392,221,000,169.10x = 1,488,808,421,232,743,202,947,072
  5. Step 5: Solve for x
    x = 1,488,808,421,232,743,202,947,072/1,392,221,000,169.10
  6. Step 6: Final answer
    x = 1,069,376,500,607.24

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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.