Home / 266,864,742.10-400,555,330.27-128,787,550.01

Finding the Fourth Proportional to 266,864,742.10, 400,555,330.27 and 128,787,550.01

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Solution

The fourth proportional to 266,864,742.10, 400,555,330.27 and 128,787,550.01 is: 193,305,939.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,864,742.10 : 400,555,330.27 = 128,787,550.01 : x
  2. Step 2: Convert to fraction form
    266,864,742.10/400,555,330.27 = 128,787,550.01/x
  3. Step 3: Cross multiply
    266,864,742.10x = 400,555,330.27 × 128,787,550.01
  4. Step 4: Simplify right side
    266,864,742.10x = 51,586,539,628,919,688
  5. Step 5: Solve for x
    x = 51,586,539,628,919,688/266,864,742.10
  6. Step 6: Final answer
    x = 193,305,939.27

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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.