Home / 20,087,878.16-30,145,088.12-9,451,139.60

Finding the Fourth Proportional to 20,087,878.16, 30,145,088.12 and 9,451,139.60

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Solution

The fourth proportional to 20,087,878.16, 30,145,088.12 and 9,451,139.60 is: 14,182,953.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087,878.16 : 30,145,088.12 = 9,451,139.60 : x
  2. Step 2: Convert to fraction form
    20,087,878.16/30,145,088.12 = 9,451,139.60/x
  3. Step 3: Cross multiply
    20,087,878.16x = 30,145,088.12 × 9,451,139.60
  4. Step 4: Simplify right side
    20,087,878.16x = 284,905,436,076,421.56
  5. Step 5: Solve for x
    x = 284,905,436,076,421.56/20,087,878.16
  6. Step 6: Final answer
    x = 14,182,953.21

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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.