Home / 72,758,547.62-109,139,002.42-20,943,837.44

Finding the Fourth Proportional to 72,758,547.62, 109,139,002.42 and 20,943,837.44

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Solution

The fourth proportional to 72,758,547.62, 109,139,002.42 and 20,943,837.44 is: 31,416,096.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,758,547.62 : 109,139,002.42 = 20,943,837.44 : x
  2. Step 2: Convert to fraction form
    72,758,547.62/109,139,002.42 = 20,943,837.44/x
  3. Step 3: Cross multiply
    72,758,547.62x = 109,139,002.42 × 20,943,837.44
  4. Step 4: Simplify right side
    72,758,547.62x = 2,285,789,525,048,247
  5. Step 5: Solve for x
    x = 2,285,789,525,048,247/72,758,547.62
  6. Step 6: Final answer
    x = 31,416,096.11

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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.