Home / 70,212,913.92-105,329,445.66-21,695,004.18

Finding the Fourth Proportional to 70,212,913.92, 105,329,445.66 and 21,695,004.18

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Solution

The fourth proportional to 70,212,913.92, 105,329,445.66 and 21,695,004.18 is: 32,545,619.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,212,913.92 : 105,329,445.66 = 21,695,004.18 : x
  2. Step 2: Convert to fraction form
    70,212,913.92/105,329,445.66 = 21,695,004.18/x
  3. Step 3: Cross multiply
    70,212,913.92x = 105,329,445.66 × 21,695,004.18
  4. Step 4: Simplify right side
    70,212,913.92x = 2,285,122,763,870,782.50
  5. Step 5: Solve for x
    x = 2,285,122,763,870,782.50/70,212,913.92
  6. Step 6: Final answer
    x = 32,545,619.26

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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.