Home / 85,184,579.40-127,776,869.10-80,145,731.40

Finding the Fourth Proportional to 85,184,579.40, 127,776,869.10 and 80,145,731.40

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Solution

The fourth proportional to 85,184,579.40, 127,776,869.10 and 80,145,731.40 is: 120,218,597.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,184,579.40 : 127,776,869.10 = 80,145,731.40 : x
  2. Step 2: Convert to fraction form
    85,184,579.40/127,776,869.10 = 80,145,731.40/x
  3. Step 3: Cross multiply
    85,184,579.40x = 127,776,869.10 × 80,145,731.40
  4. Step 4: Simplify right side
    85,184,579.40x = 10,240,770,630,021,560
  5. Step 5: Solve for x
    x = 10,240,770,630,021,560/85,184,579.40
  6. Step 6: Final answer
    x = 120,218,597.10

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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.