Home / 28,003,249.40-42,004,874.10-12,078,001.40

Finding the Fourth Proportional to 28,003,249.40, 42,004,874.10 and 12,078,001.40

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Solution

The fourth proportional to 28,003,249.40, 42,004,874.10 and 12,078,001.40 is: 18,117,002.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003,249.40 : 42,004,874.10 = 12,078,001.40 : x
  2. Step 2: Convert to fraction form
    28,003,249.40/42,004,874.10 = 12,078,001.40/x
  3. Step 3: Cross multiply
    28,003,249.40x = 42,004,874.10 × 12,078,001.40
  4. Step 4: Simplify right side
    28,003,249.40x = 507,334,928,186,623.75
  5. Step 5: Solve for x
    x = 507,334,928,186,623.75/28,003,249.40
  6. Step 6: Final answer
    x = 18,117,002.10

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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.