Home / 220,145,666.40-330,134,518.80-66,740,738.40

Finding the Fourth Proportional to 220,145,666.40, 330,134,518.80 and 66,740,738.40

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Solution

The fourth proportional to 220,145,666.40, 330,134,518.80 and 66,740,738.40 is: 100,085,647.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,145,666.40 : 330,134,518.80 = 66,740,738.40 : x
  2. Step 2: Convert to fraction form
    220,145,666.40/330,134,518.80 = 66,740,738.40/x
  3. Step 3: Cross multiply
    220,145,666.40x = 330,134,518.80 × 66,740,738.40
  4. Step 4: Simplify right side
    220,145,666.40x = 22,033,421,556,040,684
  5. Step 5: Solve for x
    x = 22,033,421,556,040,684/220,145,666.40
  6. Step 6: Final answer
    x = 100,085,647.45

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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.