Home / 404,349,415.14-606,525,899.58-128,001,986.94

Finding the Fourth Proportional to 404,349,415.14, 606,525,899.58 and 128,001,986.94

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Solution

The fourth proportional to 404,349,415.14, 606,525,899.58 and 128,001,986.94 is: 192,003,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,349,415.14 : 606,525,899.58 = 128,001,986.94 : x
  2. Step 2: Convert to fraction form
    404,349,415.14/606,525,899.58 = 128,001,986.94/x
  3. Step 3: Cross multiply
    404,349,415.14x = 606,525,899.58 × 128,001,986.94
  4. Step 4: Simplify right side
    404,349,415.14x = 77,636,520,276,810,912
  5. Step 5: Solve for x
    x = 77,636,520,276,810,912/404,349,415.14
  6. Step 6: Final answer
    x = 192,003,542.90

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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.