Home / 21,590,858.40-32,389,916.40-6,446,320.80

Finding the Fourth Proportional to 21,590,858.40, 32,389,916.40 and 6,446,320.80

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Solution

The fourth proportional to 21,590,858.40, 32,389,916.40 and 6,446,320.80 is: 9,670,564.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,590,858.40 : 32,389,916.40 = 6,446,320.80 : x
  2. Step 2: Convert to fraction form
    21,590,858.40/32,389,916.40 = 6,446,320.80/x
  3. Step 3: Cross multiply
    21,590,858.40x = 32,389,916.40 × 6,446,320.80
  4. Step 4: Simplify right side
    21,590,858.40x = 208,795,791,799,581.09
  5. Step 5: Solve for x
    x = 208,795,791,799,581.09/21,590,858.40
  6. Step 6: Final answer
    x = 9,670,564.64

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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.