Home / 19,020,145,970.79-28,525,504,354.83-6,428,724,488.36

Finding the Fourth Proportional to 19,020,145,970.79, 28,525,504,354.83 and 6,428,724,488.36

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Solution

The fourth proportional to 19,020,145,970.79, 28,525,504,354.83 and 6,428,724,488.36 is: 9,641,493,218.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,020,145,970.79 : 28,525,504,354.83 = 6,428,724,488.36 : x
  2. Step 2: Convert to fraction form
    19,020,145,970.79/28,525,504,354.83 = 6,428,724,488.36/x
  3. Step 3: Cross multiply
    19,020,145,970.79x = 28,525,504,354.83 × 6,428,724,488.36
  4. Step 4: Simplify right side
    19,020,145,970.79x = 183,382,608,388,715,446,272
  5. Step 5: Solve for x
    x = 183,382,608,388,715,446,272/19,020,145,970.79
  6. Step 6: Final answer
    x = 9,641,493,218.31

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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.