Home / 128,667,005.56-192,953,787.52-70,417,733.14

Finding the Fourth Proportional to 128,667,005.56, 192,953,787.52 and 70,417,733.14

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Solution

The fourth proportional to 128,667,005.56, 192,953,787.52 and 70,417,733.14 is: 105,601,030.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,667,005.56 : 192,953,787.52 = 70,417,733.14 : x
  2. Step 2: Convert to fraction form
    128,667,005.56/192,953,787.52 = 70,417,733.14/x
  3. Step 3: Cross multiply
    128,667,005.56x = 192,953,787.52 × 70,417,733.14
  4. Step 4: Simplify right side
    128,667,005.56x = 13,587,368,317,935,624
  5. Step 5: Solve for x
    x = 13,587,368,317,935,624/128,667,005.56
  6. Step 6: Final answer
    x = 105,601,030.03

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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.