Home / 13,359,629.40-20,023,697.70-9,989,899.80

Finding the Fourth Proportional to 13,359,629.40, 20,023,697.70 and 9,989,899.80

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Solution

The fourth proportional to 13,359,629.40, 20,023,697.70 and 9,989,899.80 is: 14,973,075.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359,629.40 : 20,023,697.70 = 9,989,899.80 : x
  2. Step 2: Convert to fraction form
    13,359,629.40/20,023,697.70 = 9,989,899.80/x
  3. Step 3: Cross multiply
    13,359,629.40x = 20,023,697.70 × 9,989,899.80
  4. Step 4: Simplify right side
    13,359,629.40x = 200,034,733,648,490.47
  5. Step 5: Solve for x
    x = 200,034,733,648,490.47/13,359,629.40
  6. Step 6: Final answer
    x = 14,973,075.05

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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.