Home / 12,621,144-17,417,178.37-6,819,925.58

Finding the Fourth Proportional to 12,621,144, 17,417,178.37 and 6,819,925.58

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Solution

The fourth proportional to 12,621,144, 17,417,178.37 and 6,819,925.58 is: 9,411,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621,144 : 17,417,178.37 = 6,819,925.58 : x
  2. Step 2: Convert to fraction form
    12,621,144/17,417,178.37 = 6,819,925.58/x
  3. Step 3: Cross multiply
    12,621,144x = 17,417,178.37 × 6,819,925.58
  4. Step 4: Simplify right side
    12,621,144x = 118,783,860,175,800.17
  5. Step 5: Solve for x
    x = 118,783,860,175,800.17/12,621,144
  6. Step 6: Final answer
    x = 9,411,497.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.