Home / 680,804,645,411.80-1,021,206,968,117.70-412,625,061,616.60

Finding the Fourth Proportional to 680,804,645,411.80, 1,021,206,968,117.70 and 412,625,061,616.60

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Solution

The fourth proportional to 680,804,645,411.80, 1,021,206,968,117.70 and 412,625,061,616.60 is: 618,937,592,424.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,804,645,411.80 : 1,021,206,968,117.70 = 412,625,061,616.60 : x
  2. Step 2: Convert to fraction form
    680,804,645,411.80/1,021,206,968,117.70 = 412,625,061,616.60/x
  3. Step 3: Cross multiply
    680,804,645,411.80x = 1,021,206,968,117.70 × 412,625,061,616.60
  4. Step 4: Simplify right side
    680,804,645,411.80x = 421,375,588,142,867,179,110,400
  5. Step 5: Solve for x
    x = 421,375,588,142,867,179,110,400/680,804,645,411.80
  6. Step 6: Final answer
    x = 618,937,592,424.90

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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.