Home / 10,651,969.20-15,977,953.80-8,880,499.20

Finding the Fourth Proportional to 10,651,969.20, 15,977,953.80 and 8,880,499.20

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Solution

The fourth proportional to 10,651,969.20, 15,977,953.80 and 8,880,499.20 is: 13,320,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,651,969.20 : 15,977,953.80 = 8,880,499.20 : x
  2. Step 2: Convert to fraction form
    10,651,969.20/15,977,953.80 = 8,880,499.20/x
  3. Step 3: Cross multiply
    10,651,969.20x = 15,977,953.80 × 8,880,499.20
  4. Step 4: Simplify right side
    10,651,969.20x = 141,892,205,938,536.97
  5. Step 5: Solve for x
    x = 141,892,205,938,536.97/10,651,969.20
  6. Step 6: Final answer
    x = 13,320,748.80

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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.