Home / 211,428,173.36-291,895,970.82-133,178,800.52

Finding the Fourth Proportional to 211,428,173.36, 291,895,970.82 and 133,178,800.52

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Solution

The fourth proportional to 211,428,173.36, 291,895,970.82 and 133,178,800.52 is: 183,865,540.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,428,173.36 : 291,895,970.82 = 133,178,800.52 : x
  2. Step 2: Convert to fraction form
    211,428,173.36/291,895,970.82 = 133,178,800.52/x
  3. Step 3: Cross multiply
    211,428,173.36x = 291,895,970.82 × 133,178,800.52
  4. Step 4: Simplify right side
    211,428,173.36x = 38,874,355,270,428,520
  5. Step 5: Solve for x
    x = 38,874,355,270,428,520/211,428,173.36
  6. Step 6: Final answer
    x = 183,865,540.02

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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.