Home / 861,699,929.20-1,290,693,343.83-583,826,554.51

Finding the Fourth Proportional to 861,699,929.20, 1,290,693,343.83 and 583,826,554.51

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Solution

The fourth proportional to 861,699,929.20, 1,290,693,343.83 and 583,826,554.51 is: 874,481,965.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,699,929.20 : 1,290,693,343.83 = 583,826,554.51 : x
  2. Step 2: Convert to fraction form
    861,699,929.20/1,290,693,343.83 = 583,826,554.51/x
  3. Step 3: Cross multiply
    861,699,929.20x = 1,290,693,343.83 × 583,826,554.51
  4. Step 4: Simplify right side
    861,699,929.20x = 753,541,047,857,259,648
  5. Step 5: Solve for x
    x = 753,541,047,857,259,648/861,699,929.20
  6. Step 6: Final answer
    x = 874,481,965.62

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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.