Home / 1,076,320,816.20-1,614,481,224.30-686,987,139.60

Finding the Fourth Proportional to 1,076,320,816.20, 1,614,481,224.30 and 686,987,139.60

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Solution

The fourth proportional to 1,076,320,816.20, 1,614,481,224.30 and 686,987,139.60 is: 1,030,480,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,320,816.20 : 1,614,481,224.30 = 686,987,139.60 : x
  2. Step 2: Convert to fraction form
    1,076,320,816.20/1,614,481,224.30 = 686,987,139.60/x
  3. Step 3: Cross multiply
    1,076,320,816.20x = 1,614,481,224.30 × 686,987,139.60
  4. Step 4: Simplify right side
    1,076,320,816.20x = 1,109,127,838,219,763,072
  5. Step 5: Solve for x
    x = 1,109,127,838,219,763,072/1,076,320,816.20
  6. Step 6: Final answer
    x = 1,030,480,709.40

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Double scale
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1.5x scale

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.