Home / 646,210,151,908.90-969,315,227,930-215,947,236,646.64

Finding the Fourth Proportional to 646,210,151,908.90, 969,315,227,930 and 215,947,236,646.64

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Solution

The fourth proportional to 646,210,151,908.90, 969,315,227,930 and 215,947,236,646.64 is: 323,920,854,992.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,210,151,908.90 : 969,315,227,930 = 215,947,236,646.64 : x
  2. Step 2: Convert to fraction form
    646,210,151,908.90/969,315,227,930 = 215,947,236,646.64/x
  3. Step 3: Cross multiply
    646,210,151,908.90x = 969,315,227,930 × 215,947,236,646.64
  4. Step 4: Simplify right side
    646,210,151,908.90x = 209,320,944,910,991,527,772,160
  5. Step 5: Solve for x
    x = 209,320,944,910,991,527,772,160/646,210,151,908.90
  6. Step 6: Final answer
    x = 323,920,854,992.23

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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.