Home / 680,205,888.45-1,020,470,754.51-220,144,063.23

Finding the Fourth Proportional to 680,205,888.45, 1,020,470,754.51 and 220,144,063.23

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Solution

The fourth proportional to 680,205,888.45, 1,020,470,754.51 and 220,144,063.23 is: 330,268,499.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,205,888.45 : 1,020,470,754.51 = 220,144,063.23 : x
  2. Step 2: Convert to fraction form
    680,205,888.45/1,020,470,754.51 = 220,144,063.23/x
  3. Step 3: Cross multiply
    680,205,888.45x = 1,020,470,754.51 × 220,144,063.23
  4. Step 4: Simplify right side
    680,205,888.45x = 224,650,578,305,215,232
  5. Step 5: Solve for x
    x = 224,650,578,305,215,232/680,205,888.45
  6. Step 6: Final answer
    x = 330,268,499.76

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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.