Home / 209,953,013.80-314,929,520.70-188,789,852.20

Finding the Fourth Proportional to 209,953,013.80, 314,929,520.70 and 188,789,852.20

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Solution

The fourth proportional to 209,953,013.80, 314,929,520.70 and 188,789,852.20 is: 283,184,778.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,953,013.80 : 314,929,520.70 = 188,789,852.20 : x
  2. Step 2: Convert to fraction form
    209,953,013.80/314,929,520.70 = 188,789,852.20/x
  3. Step 3: Cross multiply
    209,953,013.80x = 314,929,520.70 × 188,789,852.20
  4. Step 4: Simplify right side
    209,953,013.80x = 59,455,497,666,369,832
  5. Step 5: Solve for x
    x = 59,455,497,666,369,832/209,953,013.80
  6. Step 6: Final answer
    x = 283,184,778.30

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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.