Home / 305,696,525.14-421,878,915.72-230,207,714.92

Finding the Fourth Proportional to 305,696,525.14, 421,878,915.72 and 230,207,714.92

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Solution

The fourth proportional to 305,696,525.14, 421,878,915.72 and 230,207,714.92 is: 317,699,984.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,696,525.14 : 421,878,915.72 = 230,207,714.92 : x
  2. Step 2: Convert to fraction form
    305,696,525.14/421,878,915.72 = 230,207,714.92/x
  3. Step 3: Cross multiply
    305,696,525.14x = 421,878,915.72 × 230,207,714.92
  4. Step 4: Simplify right side
    305,696,525.14x = 97,119,781,160,828,464
  5. Step 5: Solve for x
    x = 97,119,781,160,828,464/305,696,525.14
  6. Step 6: Final answer
    x = 317,699,984.05

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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.