Home / 305,395,581.36-421,433,492.10-173,233,740.72

Finding the Fourth Proportional to 305,395,581.36, 421,433,492.10 and 173,233,740.72

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Solution

The fourth proportional to 305,395,581.36, 421,433,492.10 and 173,233,740.72 is: 239,055,522.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,395,581.36 : 421,433,492.10 = 173,233,740.72 : x
  2. Step 2: Convert to fraction form
    305,395,581.36/421,433,492.10 = 173,233,740.72/x
  3. Step 3: Cross multiply
    305,395,581.36x = 421,433,492.10 × 173,233,740.72
  4. Step 4: Simplify right side
    305,395,581.36x = 73,006,500,301,175,568
  5. Step 5: Solve for x
    x = 73,006,500,301,175,568/305,395,581.36
  6. Step 6: Final answer
    x = 239,055,522.60

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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.