Home / 30,585,365.76-45,878,172.34-12,389,905.09

Finding the Fourth Proportional to 30,585,365.76, 45,878,172.34 and 12,389,905.09

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Solution

The fourth proportional to 30,585,365.76, 45,878,172.34 and 12,389,905.09 is: 18,584,907.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,585,365.76 : 45,878,172.34 = 12,389,905.09 : x
  2. Step 2: Convert to fraction form
    30,585,365.76/45,878,172.34 = 12,389,905.09/x
  3. Step 3: Cross multiply
    30,585,365.76x = 45,878,172.34 × 12,389,905.09
  4. Step 4: Simplify right side
    30,585,365.76x = 568,426,201,044,867.25
  5. Step 5: Solve for x
    x = 568,426,201,044,867.25/30,585,365.76
  6. Step 6: Final answer
    x = 18,584,907.75

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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.