Home / 309,277,152.45-426,811,347.09-188,582,214.29

Finding the Fourth Proportional to 309,277,152.45, 426,811,347.09 and 188,582,214.29

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Solution

The fourth proportional to 309,277,152.45, 426,811,347.09 and 188,582,214.29 is: 260,248,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,277,152.45 : 426,811,347.09 = 188,582,214.29 : x
  2. Step 2: Convert to fraction form
    309,277,152.45/426,811,347.09 = 188,582,214.29/x
  3. Step 3: Cross multiply
    309,277,152.45x = 426,811,347.09 × 188,582,214.29
  4. Step 4: Simplify right side
    309,277,152.45x = 80,489,028,916,195,888
  5. Step 5: Solve for x
    x = 80,489,028,916,195,888/309,277,152.45
  6. Step 6: Final answer
    x = 260,248,868.30

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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.