Home / 1,311,018,783.48-1,809,184,518.86-716,290,469.24

Finding the Fourth Proportional to 1,311,018,783.48, 1,809,184,518.86 and 716,290,469.24

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Solution

The fourth proportional to 1,311,018,783.48, 1,809,184,518.86 and 716,290,469.24 is: 988,469,154.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,018,783.48 : 1,809,184,518.86 = 716,290,469.24 : x
  2. Step 2: Convert to fraction form
    1,311,018,783.48/1,809,184,518.86 = 716,290,469.24/x
  3. Step 3: Cross multiply
    1,311,018,783.48x = 1,809,184,518.86 × 716,290,469.24
  4. Step 4: Simplify right side
    1,311,018,783.48x = 1,295,901,627,955,972,864
  5. Step 5: Solve for x
    x = 1,295,901,627,955,972,864/1,311,018,783.48
  6. Step 6: Final answer
    x = 988,469,154.13

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Double scale
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1.5x scale

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.