Home / 188,243,338.60-282,365,007.90-86,206,666.60

Finding the Fourth Proportional to 188,243,338.60, 282,365,007.90 and 86,206,666.60

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Solution

The fourth proportional to 188,243,338.60, 282,365,007.90 and 86,206,666.60 is: 129,309,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,243,338.60 : 282,365,007.90 = 86,206,666.60 : x
  2. Step 2: Convert to fraction form
    188,243,338.60/282,365,007.90 = 86,206,666.60/x
  3. Step 3: Cross multiply
    188,243,338.60x = 282,365,007.90 × 86,206,666.60
  4. Step 4: Simplify right side
    188,243,338.60x = 24,341,746,095,541,664
  5. Step 5: Solve for x
    x = 24,341,746,095,541,664/188,243,338.60
  6. Step 6: Final answer
    x = 129,309,999.90

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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.