Home / 70,215,345.28-105,285,148.08-31,855,929.76

Finding the Fourth Proportional to 70,215,345.28, 105,285,148.08 and 31,855,929.76

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Solution

The fourth proportional to 70,215,345.28, 105,285,148.08 and 31,855,929.76 is: 47,766,713.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,215,345.28 : 105,285,148.08 = 31,855,929.76 : x
  2. Step 2: Convert to fraction form
    70,215,345.28/105,285,148.08 = 31,855,929.76/x
  3. Step 3: Cross multiply
    70,215,345.28x = 105,285,148.08 × 31,855,929.76
  4. Step 4: Simplify right side
    70,215,345.28x = 3,353,956,282,007,679
  5. Step 5: Solve for x
    x = 3,353,956,282,007,679/70,215,345.28
  6. Step 6: Final answer
    x = 47,766,713.51

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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.