Home / 342,179,742.80-513,064,640.45-108,909,694.46

Finding the Fourth Proportional to 342,179,742.80, 513,064,640.45 and 108,909,694.46

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Solution

The fourth proportional to 342,179,742.80, 513,064,640.45 and 108,909,694.46 is: 163,299,302.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,179,742.80 : 513,064,640.45 = 108,909,694.46 : x
  2. Step 2: Convert to fraction form
    342,179,742.80/513,064,640.45 = 108,909,694.46/x
  3. Step 3: Cross multiply
    342,179,742.80x = 513,064,640.45 × 108,909,694.46
  4. Step 4: Simplify right side
    342,179,742.80x = 55,877,713,226,529,384
  5. Step 5: Solve for x
    x = 55,877,713,226,529,384/342,179,742.80
  6. Step 6: Final answer
    x = 163,299,302.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.