Home / 128,753,659.64-177,681,315.51-70,017,601.11

Finding the Fourth Proportional to 128,753,659.64, 177,681,315.51 and 70,017,601.11

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Solution

The fourth proportional to 128,753,659.64, 177,681,315.51 and 70,017,601.11 is: 96,624,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,753,659.64 : 177,681,315.51 = 70,017,601.11 : x
  2. Step 2: Convert to fraction form
    128,753,659.64/177,681,315.51 = 70,017,601.11/x
  3. Step 3: Cross multiply
    128,753,659.64x = 177,681,315.51 × 70,017,601.11
  4. Step 4: Simplify right side
    128,753,659.64x = 12,440,819,474,079,236
  5. Step 5: Solve for x
    x = 12,440,819,474,079,236/128,753,659.64
  6. Step 6: Final answer
    x = 96,624,977.57

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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.