Home / 12,872,913.44-17,762,647.76-7,439,356.96

Finding the Fourth Proportional to 12,872,913.44, 17,762,647.76 and 7,439,356.96

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Solution

The fourth proportional to 12,872,913.44, 17,762,647.76 and 7,439,356.96 is: 10,265,172.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872,913.44 : 17,762,647.76 = 7,439,356.96 : x
  2. Step 2: Convert to fraction form
    12,872,913.44/17,762,647.76 = 7,439,356.96/x
  3. Step 3: Cross multiply
    12,872,913.44x = 17,762,647.76 × 7,439,356.96
  4. Step 4: Simplify right side
    12,872,913.44x = 132,142,677,241,384.42
  5. Step 5: Solve for x
    x = 132,142,677,241,384.42/12,872,913.44
  6. Step 6: Final answer
    x = 10,265,172.52

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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.