Home / 28,003,246.40-42,004,869.60-12,077,998.40

Finding the Fourth Proportional to 28,003,246.40, 42,004,869.60 and 12,077,998.40

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Solution

The fourth proportional to 28,003,246.40, 42,004,869.60 and 12,077,998.40 is: 18,116,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003,246.40 : 42,004,869.60 = 12,077,998.40 : x
  2. Step 2: Convert to fraction form
    28,003,246.40/42,004,869.60 = 12,077,998.40/x
  3. Step 3: Cross multiply
    28,003,246.40x = 42,004,869.60 × 12,077,998.40
  4. Step 4: Simplify right side
    28,003,246.40x = 507,334,747,821,008.69
  5. Step 5: Solve for x
    x = 507,334,747,821,008.69/28,003,246.40
  6. Step 6: Final answer
    x = 18,116,997.60

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Double scale
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Similar ratio
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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.