Home / 139,972,831.20-209,959,246.80-37,747,202.40

Finding the Fourth Proportional to 139,972,831.20, 209,959,246.80 and 37,747,202.40

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Solution

The fourth proportional to 139,972,831.20, 209,959,246.80 and 37,747,202.40 is: 56,620,803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,972,831.20 : 209,959,246.80 = 37,747,202.40 : x
  2. Step 2: Convert to fraction form
    139,972,831.20/209,959,246.80 = 37,747,202.40/x
  3. Step 3: Cross multiply
    139,972,831.20x = 209,959,246.80 × 37,747,202.40
  4. Step 4: Simplify right side
    139,972,831.20x = 7,925,374,184,711,152
  5. Step 5: Solve for x
    x = 7,925,374,184,711,152/139,972,831.20
  6. Step 6: Final answer
    x = 56,620,803.60

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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.