Home / 780,180,449.28-1,076,643,318-427,750,633.56

Finding the Fourth Proportional to 780,180,449.28, 1,076,643,318 and 427,750,633.56

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Solution

The fourth proportional to 780,180,449.28, 1,076,643,318 and 427,750,633.56 is: 590,292,748.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,180,449.28 : 1,076,643,318 = 427,750,633.56 : x
  2. Step 2: Convert to fraction form
    780,180,449.28/1,076,643,318 = 427,750,633.56/x
  3. Step 3: Cross multiply
    780,180,449.28x = 1,076,643,318 × 427,750,633.56
  4. Step 4: Simplify right side
    780,180,449.28x = 460,534,861,392,640,576
  5. Step 5: Solve for x
    x = 460,534,861,392,640,576/780,180,449.28
  6. Step 6: Final answer
    x = 590,292,748.07

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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.