Home / 1,231,344,205.21-1,699,255,919.33-666,833,468.86

Finding the Fourth Proportional to 1,231,344,205.21, 1,699,255,919.33 and 666,833,468.86

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Solution

The fourth proportional to 1,231,344,205.21, 1,699,255,919.33 and 666,833,468.86 is: 920,230,683.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,344,205.21 : 1,699,255,919.33 = 666,833,468.86 : x
  2. Step 2: Convert to fraction form
    1,231,344,205.21/1,699,255,919.33 = 666,833,468.86/x
  3. Step 3: Cross multiply
    1,231,344,205.21x = 1,699,255,919.33 × 666,833,468.86
  4. Step 4: Simplify right side
    1,231,344,205.21x = 1,133,120,719,167,712,256
  5. Step 5: Solve for x
    x = 1,133,120,719,167,712,256/1,231,344,205.21
  6. Step 6: Final answer
    x = 920,230,683.16

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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.