Home / 208,178,458.68-287,287,960.68-115,360,516.56

Finding the Fourth Proportional to 208,178,458.68, 287,287,960.68 and 115,360,516.56

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Solution

The fourth proportional to 208,178,458.68, 287,287,960.68 and 115,360,516.56 is: 159,198,448.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,178,458.68 : 287,287,960.68 = 115,360,516.56 : x
  2. Step 2: Convert to fraction form
    208,178,458.68/287,287,960.68 = 115,360,516.56/x
  3. Step 3: Cross multiply
    208,178,458.68x = 287,287,960.68 × 115,360,516.56
  4. Step 4: Simplify right side
    208,178,458.68x = 33,141,687,545,513,772
  5. Step 5: Solve for x
    x = 33,141,687,545,513,772/208,178,458.68
  6. Step 6: Final answer
    x = 159,198,448.08

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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.