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Finding the Fourth Proportional to 19,682,672.80, 29,528,674.80 and 10,099,530.40

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Solution

The fourth proportional to 19,682,672.80, 29,528,674.80 and 10,099,530.40 is: 15,151,689.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,682,672.80 : 29,528,674.80 = 10,099,530.40 : x
  2. Step 2: Convert to fraction form
    19,682,672.80/29,528,674.80 = 10,099,530.40/x
  3. Step 3: Cross multiply
    19,682,672.80x = 29,528,674.80 × 10,099,530.40
  4. Step 4: Simplify right side
    19,682,672.80x = 298,225,748,814,313.94
  5. Step 5: Solve for x
    x = 298,225,748,814,313.94/19,682,672.80
  6. Step 6: Final answer
    x = 15,151,689.60

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1.5x scale

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.