Home / 188,243,338.10-282,365,007.15-86,206,666.10

Finding the Fourth Proportional to 188,243,338.10, 282,365,007.15 and 86,206,666.10

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Solution

The fourth proportional to 188,243,338.10, 282,365,007.15 and 86,206,666.10 is: 129,309,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,243,338.10 : 282,365,007.15 = 86,206,666.10 : x
  2. Step 2: Convert to fraction form
    188,243,338.10/282,365,007.15 = 86,206,666.10/x
  3. Step 3: Cross multiply
    188,243,338.10x = 282,365,007.15 × 86,206,666.10
  4. Step 4: Simplify right side
    188,243,338.10x = 24,341,745,889,704,160
  5. Step 5: Solve for x
    x = 24,341,745,889,704,160/188,243,338.10
  6. Step 6: Final answer
    x = 129,309,999.15

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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.