Home / 1,391,792,894.70-2,087,359,717.41-518,804,080.62

Finding the Fourth Proportional to 1,391,792,894.70, 2,087,359,717.41 and 518,804,080.62

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Solution

The fourth proportional to 1,391,792,894.70, 2,087,359,717.41 and 518,804,080.62 is: 778,083,250.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,792,894.70 : 2,087,359,717.41 = 518,804,080.62 : x
  2. Step 2: Convert to fraction form
    1,391,792,894.70/2,087,359,717.41 = 518,804,080.62/x
  3. Step 3: Cross multiply
    1,391,792,894.70x = 2,087,359,717.41 × 518,804,080.62
  4. Step 4: Simplify right side
    1,391,792,894.70x = 1,082,930,739,114,118,144
  5. Step 5: Solve for x
    x = 1,082,930,739,114,118,144/1,391,792,894.70
  6. Step 6: Final answer
    x = 778,083,250.20

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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.