Home / 70,215,345.53-105,285,148.46-31,855,930.01

Finding the Fourth Proportional to 70,215,345.53, 105,285,148.46 and 31,855,930.01

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Solution

The fourth proportional to 70,215,345.53, 105,285,148.46 and 31,855,930.01 is: 47,766,713.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,215,345.53 : 105,285,148.46 = 31,855,930.01 : x
  2. Step 2: Convert to fraction form
    70,215,345.53/105,285,148.46 = 31,855,930.01/x
  3. Step 3: Cross multiply
    70,215,345.53x = 105,285,148.46 × 31,855,930.01
  4. Step 4: Simplify right side
    70,215,345.53x = 3,353,956,320,274,940
  5. Step 5: Solve for x
    x = 3,353,956,320,274,940/70,215,345.53
  6. Step 6: Final answer
    x = 47,766,713.89

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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.