Home / 289,723,230,533.86-434,584,743,514.28-77,481,846,830.45

Finding the Fourth Proportional to 289,723,230,533.86, 434,584,743,514.28 and 77,481,846,830.45

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Solution

The fourth proportional to 289,723,230,533.86, 434,584,743,514.28 and 77,481,846,830.45 is: 116,222,742,890.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,723,230,533.86 : 434,584,743,514.28 = 77,481,846,830.45 : x
  2. Step 2: Convert to fraction form
    289,723,230,533.86/434,584,743,514.28 = 77,481,846,830.45/x
  3. Step 3: Cross multiply
    289,723,230,533.86x = 434,584,743,514.28 × 77,481,846,830.45
  4. Step 4: Simplify right side
    289,723,230,533.86x = 33,672,428,531,824,711,434,240
  5. Step 5: Solve for x
    x = 33,672,428,531,824,711,434,240/289,723,230,533.86
  6. Step 6: Final answer
    x = 116,222,742,890.79

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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.