Home / 1,139,519,004.80-1,709,278,507.20-1,127,425,769.60

Finding the Fourth Proportional to 1,139,519,004.80, 1,709,278,507.20 and 1,127,425,769.60

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Solution

The fourth proportional to 1,139,519,004.80, 1,709,278,507.20 and 1,127,425,769.60 is: 1,691,138,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,519,004.80 : 1,709,278,507.20 = 1,127,425,769.60 : x
  2. Step 2: Convert to fraction form
    1,139,519,004.80/1,709,278,507.20 = 1,127,425,769.60/x
  3. Step 3: Cross multiply
    1,139,519,004.80x = 1,709,278,507.20 × 1,127,425,769.60
  4. Step 4: Simplify right side
    1,139,519,004.80x = 1,927,084,636,440,699,136
  5. Step 5: Solve for x
    x = 1,927,084,636,440,699,136/1,139,519,004.80
  6. Step 6: Final answer
    x = 1,691,138,654.40

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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.