Home / 70,212,913.42-105,329,444.90-21,695,003.68

Finding the Fourth Proportional to 70,212,913.42, 105,329,444.90 and 21,695,003.68

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Solution

The fourth proportional to 70,212,913.42, 105,329,444.90 and 21,695,003.68 is: 32,545,618.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,212,913.42 : 105,329,444.90 = 21,695,003.68 : x
  2. Step 2: Convert to fraction form
    70,212,913.42/105,329,444.90 = 21,695,003.68/x
  3. Step 3: Cross multiply
    70,212,913.42x = 105,329,444.90 × 21,695,003.68
  4. Step 4: Simplify right side
    70,212,913.42x = 2,285,122,694,717,857.50
  5. Step 5: Solve for x
    x = 2,285,122,694,717,857.50/70,212,913.42
  6. Step 6: Final answer
    x = 32,545,618.51

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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.