Home / 128,132,896-192,269,313.04-54,345,198.40

Finding the Fourth Proportional to 128,132,896, 192,269,313.04 and 54,345,198.40

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Solution

The fourth proportional to 128,132,896, 192,269,313.04 and 54,345,198.40 is: 81,547,473.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,132,896 : 192,269,313.04 = 54,345,198.40 : x
  2. Step 2: Convert to fraction form
    128,132,896/192,269,313.04 = 54,345,198.40/x
  3. Step 3: Cross multiply
    128,132,896x = 192,269,313.04 × 54,345,198.40
  4. Step 4: Simplify right side
    128,132,896x = 10,448,913,963,390,506
  5. Step 5: Solve for x
    x = 10,448,913,963,390,506/128,132,896
  6. Step 6: Final answer
    x = 81,547,473.67

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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.