Home / 186,416,417.28-257,256,673.18-102,784,709.72

Finding the Fourth Proportional to 186,416,417.28, 257,256,673.18 and 102,784,709.72

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Solution

The fourth proportional to 186,416,417.28, 257,256,673.18 and 102,784,709.72 is: 141,844,011.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,416,417.28 : 257,256,673.18 = 102,784,709.72 : x
  2. Step 2: Convert to fraction form
    186,416,417.28/257,256,673.18 = 102,784,709.72/x
  3. Step 3: Cross multiply
    186,416,417.28x = 257,256,673.18 × 102,784,709.72
  4. Step 4: Simplify right side
    186,416,417.28x = 26,442,052,476,339,208
  5. Step 5: Solve for x
    x = 26,442,052,476,339,208/186,416,417.28
  6. Step 6: Final answer
    x = 141,844,011.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.