Home / 145,242,016.70-200,434,057.79-82,518,225.21

Finding the Fourth Proportional to 145,242,016.70, 200,434,057.79 and 82,518,225.21

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Solution

The fourth proportional to 145,242,016.70, 200,434,057.79 and 82,518,225.21 is: 113,875,193.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,242,016.70 : 200,434,057.79 = 82,518,225.21 : x
  2. Step 2: Convert to fraction form
    145,242,016.70/200,434,057.79 = 82,518,225.21/x
  3. Step 3: Cross multiply
    145,242,016.70x = 200,434,057.79 × 82,518,225.21
  4. Step 4: Simplify right side
    145,242,016.70x = 16,539,462,720,056,782
  5. Step 5: Solve for x
    x = 16,539,462,720,056,782/145,242,016.70
  6. Step 6: Final answer
    x = 113,875,193.26

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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.