Home / 289,249,971.96-399,189,579.30-163,824,480.12

Finding the Fourth Proportional to 289,249,971.96, 399,189,579.30 and 163,824,480.12

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Solution

The fourth proportional to 289,249,971.96, 399,189,579.30 and 163,824,480.12 is: 226,091,725.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,249,971.96 : 399,189,579.30 = 163,824,480.12 : x
  2. Step 2: Convert to fraction form
    289,249,971.96/399,189,579.30 = 163,824,480.12/x
  3. Step 3: Cross multiply
    289,249,971.96x = 399,189,579.30 × 163,824,480.12
  4. Step 4: Simplify right side
    289,249,971.96x = 65,397,025,298,144,016
  5. Step 5: Solve for x
    x = 65,397,025,298,144,016/289,249,971.96
  6. Step 6: Final answer
    x = 226,091,725.63

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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.