Home / 14,383,206.40-21,574,809.60-12,939,980.80

Finding the Fourth Proportional to 14,383,206.40, 21,574,809.60 and 12,939,980.80

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Solution

The fourth proportional to 14,383,206.40, 21,574,809.60 and 12,939,980.80 is: 19,409,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,383,206.40 : 21,574,809.60 = 12,939,980.80 : x
  2. Step 2: Convert to fraction form
    14,383,206.40/21,574,809.60 = 12,939,980.80/x
  3. Step 3: Cross multiply
    14,383,206.40x = 21,574,809.60 × 12,939,980.80
  4. Step 4: Simplify right side
    14,383,206.40x = 279,177,621,987,655.72
  5. Step 5: Solve for x
    x = 279,177,621,987,655.72/14,383,206.40
  6. Step 6: Final answer
    x = 19,409,971.20

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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.