Home / 512,044,698.51-767,980,417.60-143,494,828.54

Finding the Fourth Proportional to 512,044,698.51, 767,980,417.60 and 143,494,828.54

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Solution

The fourth proportional to 512,044,698.51, 767,980,417.60 and 143,494,828.54 is: 215,217,965.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,044,698.51 : 767,980,417.60 = 143,494,828.54 : x
  2. Step 2: Convert to fraction form
    512,044,698.51/767,980,417.60 = 143,494,828.54/x
  3. Step 3: Cross multiply
    512,044,698.51x = 767,980,417.60 × 143,494,828.54
  4. Step 4: Simplify right side
    512,044,698.51x = 110,201,218,345,589,600
  5. Step 5: Solve for x
    x = 110,201,218,345,589,600/512,044,698.51
  6. Step 6: Final answer
    x = 215,217,965.67

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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.