Home / 260,241,831.80-390,362,747.70-143,340,558.20

Finding the Fourth Proportional to 260,241,831.80, 390,362,747.70 and 143,340,558.20

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Solution

The fourth proportional to 260,241,831.80, 390,362,747.70 and 143,340,558.20 is: 215,010,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,241,831.80 : 390,362,747.70 = 143,340,558.20 : x
  2. Step 2: Convert to fraction form
    260,241,831.80/390,362,747.70 = 143,340,558.20/x
  3. Step 3: Cross multiply
    260,241,831.80x = 390,362,747.70 × 143,340,558.20
  4. Step 4: Simplify right side
    260,241,831.80x = 55,954,814,155,803,760
  5. Step 5: Solve for x
    x = 55,954,814,155,803,760/260,241,831.80
  6. Step 6: Final answer
    x = 215,010,837.30

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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.