Home / 310,808,506.49-428,917,108.91-171,580,412.33

Finding the Fourth Proportional to 310,808,506.49, 428,917,108.91 and 171,580,412.33

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Solution

The fourth proportional to 310,808,506.49, 428,917,108.91 and 171,580,412.33 is: 236,781,725.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,808,506.49 : 428,917,108.91 = 171,580,412.33 : x
  2. Step 2: Convert to fraction form
    310,808,506.49/428,917,108.91 = 171,580,412.33/x
  3. Step 3: Cross multiply
    310,808,506.49x = 428,917,108.91 × 171,580,412.33
  4. Step 4: Simplify right side
    310,808,506.49x = 73,593,774,402,464,368
  5. Step 5: Solve for x
    x = 73,593,774,402,464,368/310,808,506.49
  6. Step 6: Final answer
    x = 236,781,725.29

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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.