Home / 289,723,230,561.80-434,584,743,556.16-77,481,846,858.28

Finding the Fourth Proportional to 289,723,230,561.80, 434,584,743,556.16 and 77,481,846,858.28

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Solution

The fourth proportional to 289,723,230,561.80, 434,584,743,556.16 and 77,481,846,858.28 is: 116,222,742,932.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,723,230,561.80 : 434,584,743,556.16 = 77,481,846,858.28 : x
  2. Step 2: Convert to fraction form
    289,723,230,561.80/434,584,743,556.16 = 77,481,846,858.28/x
  3. Step 3: Cross multiply
    289,723,230,561.80x = 434,584,743,556.16 × 77,481,846,858.28
  4. Step 4: Simplify right side
    289,723,230,561.80x = 33,672,428,547,163,272,773,632
  5. Step 5: Solve for x
    x = 33,672,428,547,163,272,773,632/289,723,230,561.80
  6. Step 6: Final answer
    x = 116,222,742,932.52

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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.