Home / 9,189,807,364.10-12,681,599,347.38-5,120,498,816.21

Finding the Fourth Proportional to 9,189,807,364.10, 12,681,599,347.38 and 5,120,498,816.21

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Solution

The fourth proportional to 9,189,807,364.10, 12,681,599,347.38 and 5,120,498,816.21 is: 7,066,101,809.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189,807,364.10 : 12,681,599,347.38 = 5,120,498,816.21 : x
  2. Step 2: Convert to fraction form
    9,189,807,364.10/12,681,599,347.38 = 5,120,498,816.21/x
  3. Step 3: Cross multiply
    9,189,807,364.10x = 12,681,599,347.38 × 5,120,498,816.21
  4. Step 4: Simplify right side
    9,189,807,364.10x = 64,936,114,445,907,582,976
  5. Step 5: Solve for x
    x = 64,936,114,445,907,582,976/9,189,807,364.10
  6. Step 6: Final answer
    x = 7,066,101,809.66

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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.