Home / 28,512,015.40-42,768,023.10-9,343,397.80

Finding the Fourth Proportional to 28,512,015.40, 42,768,023.10 and 9,343,397.80

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Solution

The fourth proportional to 28,512,015.40, 42,768,023.10 and 9,343,397.80 is: 14,015,096.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512,015.40 : 42,768,023.10 = 9,343,397.80 : x
  2. Step 2: Convert to fraction form
    28,512,015.40/42,768,023.10 = 9,343,397.80/x
  3. Step 3: Cross multiply
    28,512,015.40x = 42,768,023.10 × 9,343,397.80
  4. Step 4: Simplify right side
    28,512,015.40x = 399,598,652,942,889.25
  5. Step 5: Solve for x
    x = 399,598,652,942,889.25/28,512,015.40
  6. Step 6: Final answer
    x = 14,015,096.70

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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.