Home / 680,205,036.69-1,020,469,472.46-220,143,205.98

Finding the Fourth Proportional to 680,205,036.69, 1,020,469,472.46 and 220,143,205.98

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Solution

The fourth proportional to 680,205,036.69, 1,020,469,472.46 and 220,143,205.98 is: 330,267,212.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,205,036.69 : 1,020,469,472.46 = 220,143,205.98 : x
  2. Step 2: Convert to fraction form
    680,205,036.69/1,020,469,472.46 = 220,143,205.98/x
  3. Step 3: Cross multiply
    680,205,036.69x = 1,020,469,472.46 × 220,143,205.98
  4. Step 4: Simplify right side
    680,205,036.69x = 224,649,421,272,063,712
  5. Step 5: Solve for x
    x = 224,649,421,272,063,712/680,205,036.69
  6. Step 6: Final answer
    x = 330,267,212.32

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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.