Home / 191,505,623.40-287,258,435.10-133,054,986.60

Finding the Fourth Proportional to 191,505,623.40, 287,258,435.10 and 133,054,986.60

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Solution

The fourth proportional to 191,505,623.40, 287,258,435.10 and 133,054,986.60 is: 199,582,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,505,623.40 : 287,258,435.10 = 133,054,986.60 : x
  2. Step 2: Convert to fraction form
    191,505,623.40/287,258,435.10 = 133,054,986.60/x
  3. Step 3: Cross multiply
    191,505,623.40x = 287,258,435.10 × 133,054,986.60
  4. Step 4: Simplify right side
    191,505,623.40x = 38,221,167,232,967,472
  5. Step 5: Solve for x
    x = 38,221,167,232,967,472/191,505,623.40
  6. Step 6: Final answer
    x = 199,582,479.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.