Home / 128,753,664.90-177,681,322.77-70,017,606.36

Finding the Fourth Proportional to 128,753,664.90, 177,681,322.77 and 70,017,606.36

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Solution

The fourth proportional to 128,753,664.90, 177,681,322.77 and 70,017,606.36 is: 96,624,984.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,753,664.90 : 177,681,322.77 = 70,017,606.36 : x
  2. Step 2: Convert to fraction form
    128,753,664.90/177,681,322.77 = 70,017,606.36/x
  3. Step 3: Cross multiply
    128,753,664.90x = 177,681,322.77 × 70,017,606.36
  4. Step 4: Simplify right side
    128,753,664.90x = 12,440,820,915,233,966
  5. Step 5: Solve for x
    x = 12,440,820,915,233,966/128,753,664.90
  6. Step 6: Final answer
    x = 96,624,984.81

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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.