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Finding the Fourth Proportional to 1,057,809,939.20, 1,586,714,908.80 and 888,504,646.40

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Solution

The fourth proportional to 1,057,809,939.20, 1,586,714,908.80 and 888,504,646.40 is: 1,332,756,969.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,809,939.20 : 1,586,714,908.80 = 888,504,646.40 : x
  2. Step 2: Convert to fraction form
    1,057,809,939.20/1,586,714,908.80 = 888,504,646.40/x
  3. Step 3: Cross multiply
    1,057,809,939.20x = 1,586,714,908.80 × 888,504,646.40
  4. Step 4: Simplify right side
    1,057,809,939.20x = 1,409,803,568,980,952,064
  5. Step 5: Solve for x
    x = 1,409,803,568,980,952,064/1,057,809,939.20
  6. Step 6: Final answer
    x = 1,332,756,969.60

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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.