Home / 310,145,839,916.68-428,001,259,908.77-167,575,099,964.68

Finding the Fourth Proportional to 310,145,839,916.68, 428,001,259,908.77 and 167,575,099,964.68

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Solution

The fourth proportional to 310,145,839,916.68, 428,001,259,908.77 and 167,575,099,964.68 is: 231,253,638,396.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,145,839,916.68 : 428,001,259,908.77 = 167,575,099,964.68 : x
  2. Step 2: Convert to fraction form
    310,145,839,916.68/428,001,259,908.77 = 167,575,099,964.68/x
  3. Step 3: Cross multiply
    310,145,839,916.68x = 428,001,259,908.77 × 167,575,099,964.68
  4. Step 4: Simplify right side
    310,145,839,916.68x = 71,722,353,914,221,116,260,352
  5. Step 5: Solve for x
    x = 71,722,353,914,221,116,260,352/310,145,839,916.68
  6. Step 6: Final answer
    x = 231,253,638,396.34

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Double scale
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1.5x scale

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.