Home / 128,753,668.48-177,681,327.69-70,017,609.96

Finding the Fourth Proportional to 128,753,668.48, 177,681,327.69 and 70,017,609.96

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Solution

The fourth proportional to 128,753,668.48, 177,681,327.69 and 70,017,609.96 is: 96,624,989.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,753,668.48 : 177,681,327.69 = 70,017,609.96 : x
  2. Step 2: Convert to fraction form
    128,753,668.48/177,681,327.69 = 70,017,609.96/x
  3. Step 3: Cross multiply
    128,753,668.48x = 177,681,327.69 × 70,017,609.96
  4. Step 4: Simplify right side
    128,753,668.48x = 12,440,821,899,373,366
  5. Step 5: Solve for x
    x = 12,440,821,899,373,366/128,753,668.48
  6. Step 6: Final answer
    x = 96,624,989.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.