Home / 199,615,999.40-299,423,999.10-113,619,660.20

Finding the Fourth Proportional to 199,615,999.40, 299,423,999.10 and 113,619,660.20

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Solution

The fourth proportional to 199,615,999.40, 299,423,999.10 and 113,619,660.20 is: 170,429,490.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,615,999.40 : 299,423,999.10 = 113,619,660.20 : x
  2. Step 2: Convert to fraction form
    199,615,999.40/299,423,999.10 = 113,619,660.20/x
  3. Step 3: Cross multiply
    199,615,999.40x = 299,423,999.10 × 113,619,660.20
  4. Step 4: Simplify right side
    199,615,999.40x = 34,020,453,033,467,108
  5. Step 5: Solve for x
    x = 34,020,453,033,467,108/199,615,999.40
  6. Step 6: Final answer
    x = 170,429,490.30

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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.