Home / 85,536,469.80-128,210,226.30-47,225,478.60

Finding the Fourth Proportional to 85,536,469.80, 128,210,226.30 and 47,225,478.60

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Solution

The fourth proportional to 85,536,469.80, 128,210,226.30 and 47,225,478.60 is: 70,786,055.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,469.80 : 128,210,226.30 = 47,225,478.60 : x
  2. Step 2: Convert to fraction form
    85,536,469.80/128,210,226.30 = 47,225,478.60/x
  3. Step 3: Cross multiply
    85,536,469.80x = 128,210,226.30 × 47,225,478.60
  4. Step 4: Simplify right side
    85,536,469.80x = 6,054,789,298,431,807
  5. Step 5: Solve for x
    x = 6,054,789,298,431,807/85,536,469.80
  6. Step 6: Final answer
    x = 70,786,055.50

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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.