Home / 76,505,413,950.77-105,611,329,815.88-49,421,896,791.70

Finding the Fourth Proportional to 76,505,413,950.77, 105,611,329,815.88 and 49,421,896,791.70

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Solution

The fourth proportional to 76,505,413,950.77, 105,611,329,815.88 and 49,421,896,791.70 is: 68,224,089,938.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,505,413,950.77 : 105,611,329,815.88 = 49,421,896,791.70 : x
  2. Step 2: Convert to fraction form
    76,505,413,950.77/105,611,329,815.88 = 49,421,896,791.70/x
  3. Step 3: Cross multiply
    76,505,413,950.77x = 105,611,329,815.88 × 49,421,896,791.70
  4. Step 4: Simplify right side
    76,505,413,950.77x = 5,219,512,242,194,082,693,120
  5. Step 5: Solve for x
    x = 5,219,512,242,194,082,693,120/76,505,413,950.77
  6. Step 6: Final answer
    x = 68,224,089,938.96

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.