Home / 97,089,890.42-133,988,121.33-55,836,815.78

Finding the Fourth Proportional to 97,089,890.42, 133,988,121.33 and 55,836,815.78

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Solution

The fourth proportional to 97,089,890.42, 133,988,121.33 and 55,836,815.78 is: 77,057,147.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,089,890.42 : 133,988,121.33 = 55,836,815.78 : x
  2. Step 2: Convert to fraction form
    97,089,890.42/133,988,121.33 = 55,836,815.78/x
  3. Step 3: Cross multiply
    97,089,890.42x = 133,988,121.33 × 55,836,815.78
  4. Step 4: Simplify right side
    97,089,890.42x = 7,481,470,047,411,499
  5. Step 5: Solve for x
    x = 7,481,470,047,411,499/97,089,890.42
  6. Step 6: Final answer
    x = 77,057,147.92

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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.