Home / 1,196,235,910.72-1,650,736,681.86-667,558,403.92

Finding the Fourth Proportional to 1,196,235,910.72, 1,650,736,681.86 and 667,558,403.92

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Solution

The fourth proportional to 1,196,235,910.72, 1,650,736,681.86 and 667,558,403.92 is: 921,192,161.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196,235,910.72 : 1,650,736,681.86 = 667,558,403.92 : x
  2. Step 2: Convert to fraction form
    1,196,235,910.72/1,650,736,681.86 = 667,558,403.92/x
  3. Step 3: Cross multiply
    1,196,235,910.72x = 1,650,736,681.86 × 667,558,403.92
  4. Step 4: Simplify right side
    1,196,235,910.72x = 1,101,963,144,634,658,304
  5. Step 5: Solve for x
    x = 1,101,963,144,634,658,304/1,196,235,910.72
  6. Step 6: Final answer
    x = 921,192,161.81

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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.