Home / 85,824,015.10-128,736,022.65-85,027,752.70

Finding the Fourth Proportional to 85,824,015.10, 128,736,022.65 and 85,027,752.70

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Solution

The fourth proportional to 85,824,015.10, 128,736,022.65 and 85,027,752.70 is: 127,541,629.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,824,015.10 : 128,736,022.65 = 85,027,752.70 : x
  2. Step 2: Convert to fraction form
    85,824,015.10/128,736,022.65 = 85,027,752.70/x
  3. Step 3: Cross multiply
    85,824,015.10x = 128,736,022.65 × 85,027,752.70
  4. Step 4: Simplify right side
    85,824,015.10x = 10,946,134,697,465,800
  5. Step 5: Solve for x
    x = 10,946,134,697,465,800/85,824,015.10
  6. Step 6: Final answer
    x = 127,541,629.05

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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.