Home / 21,243,584.74-31,865,328.50-9,105,177.46

Finding the Fourth Proportional to 21,243,584.74, 31,865,328.50 and 9,105,177.46

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Solution

The fourth proportional to 21,243,584.74, 31,865,328.50 and 9,105,177.46 is: 13,657,745.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,243,584.74 : 31,865,328.50 = 9,105,177.46 : x
  2. Step 2: Convert to fraction form
    21,243,584.74/31,865,328.50 = 9,105,177.46/x
  3. Step 3: Cross multiply
    21,243,584.74x = 31,865,328.50 × 9,105,177.46
  4. Step 4: Simplify right side
    21,243,584.74x = 290,139,470,756,795.25
  5. Step 5: Solve for x
    x = 290,139,470,756,795.25/21,243,584.74
  6. Step 6: Final answer
    x = 13,657,745.35

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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.