Home / 12,502,415.80-18,739,626.90-7,113,647.80

Finding the Fourth Proportional to 12,502,415.80, 18,739,626.90 and 7,113,647.80

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Solution

The fourth proportional to 12,502,415.80, 18,739,626.90 and 7,113,647.80 is: 10,662,507.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,502,415.80 : 18,739,626.90 = 7,113,647.80 : x
  2. Step 2: Convert to fraction form
    12,502,415.80/18,739,626.90 = 7,113,647.80/x
  3. Step 3: Cross multiply
    12,502,415.80x = 18,739,626.90 × 7,113,647.80
  4. Step 4: Simplify right side
    12,502,415.80x = 133,307,105,670,005.81
  5. Step 5: Solve for x
    x = 133,307,105,670,005.81/12,502,415.80
  6. Step 6: Final answer
    x = 10,662,507.77

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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.