Home / 19,168,429.40-28,748,496.90-8,385,709.40

Finding the Fourth Proportional to 19,168,429.40, 28,748,496.90 and 8,385,709.40

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Solution

The fourth proportional to 19,168,429.40, 28,748,496.90 and 8,385,709.40 is: 12,576,749.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,168,429.40 : 28,748,496.90 = 8,385,709.40 : x
  2. Step 2: Convert to fraction form
    19,168,429.40/28,748,496.90 = 8,385,709.40/x
  3. Step 3: Cross multiply
    19,168,429.40x = 28,748,496.90 × 8,385,709.40
  4. Step 4: Simplify right side
    19,168,429.40x = 241,076,540,690,200.84
  5. Step 5: Solve for x
    x = 241,076,540,690,200.84/19,168,429.40
  6. Step 6: Final answer
    x = 12,576,749.80

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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.