Home / 5,390,123.40-8,085,314.70-1,603,729.80

Finding the Fourth Proportional to 5,390,123.40, 8,085,314.70 and 1,603,729.80

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Solution

The fourth proportional to 5,390,123.40, 8,085,314.70 and 1,603,729.80 is: 2,405,633.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390,123.40 : 8,085,314.70 = 1,603,729.80 : x
  2. Step 2: Convert to fraction form
    5,390,123.40/8,085,314.70 = 1,603,729.80/x
  3. Step 3: Cross multiply
    5,390,123.40x = 8,085,314.70 × 1,603,729.80
  4. Step 4: Simplify right side
    5,390,123.40x = 12,966,660,126,768.06
  5. Step 5: Solve for x
    x = 12,966,660,126,768.06/5,390,123.40
  6. Step 6: Final answer
    x = 2,405,633.26

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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.