Home / 384,914,831.80-577,372,247.70-312,355,420.60

Finding the Fourth Proportional to 384,914,831.80, 577,372,247.70 and 312,355,420.60

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Solution

The fourth proportional to 384,914,831.80, 577,372,247.70 and 312,355,420.60 is: 468,533,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,914,831.80 : 577,372,247.70 = 312,355,420.60 : x
  2. Step 2: Convert to fraction form
    384,914,831.80/577,372,247.70 = 312,355,420.60/x
  3. Step 3: Cross multiply
    384,914,831.80x = 577,372,247.70 × 312,355,420.60
  4. Step 4: Simplify right side
    384,914,831.80x = 180,345,351,273,100,896
  5. Step 5: Solve for x
    x = 180,345,351,273,100,896/384,914,831.80
  6. Step 6: Final answer
    x = 468,533,130.90

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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.