Home / 76,450,821.93-114,682,838.59-21,118,637.55

Finding the Fourth Proportional to 76,450,821.93, 114,682,838.59 and 21,118,637.55

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Solution

The fourth proportional to 76,450,821.93, 114,682,838.59 and 21,118,637.55 is: 31,679,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,450,821.93 : 114,682,838.59 = 21,118,637.55 : x
  2. Step 2: Convert to fraction form
    76,450,821.93/114,682,838.59 = 21,118,637.55/x
  3. Step 3: Cross multiply
    76,450,821.93x = 114,682,838.59 × 21,118,637.55
  4. Step 4: Simplify right side
    76,450,821.93x = 2,421,945,300,816,688.50
  5. Step 5: Solve for x
    x = 2,421,945,300,816,688.50/76,450,821.93
  6. Step 6: Final answer
    x = 31,679,781.06

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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.