Home / 745,636,101.84-1,120,906,081.08-691,699,826.70

Finding the Fourth Proportional to 745,636,101.84, 1,120,906,081.08 and 691,699,826.70

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Solution

The fourth proportional to 745,636,101.84, 1,120,906,081.08 and 691,699,826.70 is: 1,039,824,305.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,636,101.84 : 1,120,906,081.08 = 691,699,826.70 : x
  2. Step 2: Convert to fraction form
    745,636,101.84/1,120,906,081.08 = 691,699,826.70/x
  3. Step 3: Cross multiply
    745,636,101.84x = 1,120,906,081.08 × 691,699,826.70
  4. Step 4: Simplify right side
    745,636,101.84x = 775,330,542,030,012,160
  5. Step 5: Solve for x
    x = 775,330,542,030,012,160/745,636,101.84
  6. Step 6: Final answer
    x = 1,039,824,305.87

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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.