Home / 103,143,629.64-154,698,618.06-30,343,378.44

Finding the Fourth Proportional to 103,143,629.64, 154,698,618.06 and 30,343,378.44

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Solution

The fourth proportional to 103,143,629.64, 154,698,618.06 and 30,343,378.44 is: 45,510,117.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,143,629.64 : 154,698,618.06 = 30,343,378.44 : x
  2. Step 2: Convert to fraction form
    103,143,629.64/154,698,618.06 = 30,343,378.44/x
  3. Step 3: Cross multiply
    103,143,629.64x = 154,698,618.06 × 30,343,378.44
  4. Step 4: Simplify right side
    103,143,629.64x = 4,694,078,711,939,599
  5. Step 5: Solve for x
    x = 4,694,078,711,939,599/103,143,629.64
  6. Step 6: Final answer
    x = 45,510,117.57

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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.