Home / 21,048,566,831.76-31,576,832,291.88-8,458,405,363.56

Finding the Fourth Proportional to 21,048,566,831.76, 31,576,832,291.88 and 8,458,405,363.56

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Solution

The fourth proportional to 21,048,566,831.76, 31,576,832,291.88 and 8,458,405,363.56 is: 12,689,208,237.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048,566,831.76 : 31,576,832,291.88 = 8,458,405,363.56 : x
  2. Step 2: Convert to fraction form
    21,048,566,831.76/31,576,832,291.88 = 8,458,405,363.56/x
  3. Step 3: Cross multiply
    21,048,566,831.76x = 31,576,832,291.88 × 8,458,405,363.56
  4. Step 4: Simplify right side
    21,048,566,831.76x = 267,089,647,621,872,418,816
  5. Step 5: Solve for x
    x = 267,089,647,621,872,418,816/21,048,566,831.76
  6. Step 6: Final answer
    x = 12,689,208,237.15

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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.