Home / 769,559,421.80-1,061,963,550.88-417,127,845.71

Finding the Fourth Proportional to 769,559,421.80, 1,061,963,550.88 and 417,127,845.71

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Solution

The fourth proportional to 769,559,421.80, 1,061,963,550.88 and 417,127,845.71 is: 575,621,005.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,559,421.80 : 1,061,963,550.88 = 417,127,845.71 : x
  2. Step 2: Convert to fraction form
    769,559,421.80/1,061,963,550.88 = 417,127,845.71/x
  3. Step 3: Cross multiply
    769,559,421.80x = 1,061,963,550.88 × 417,127,845.71
  4. Step 4: Simplify right side
    769,559,421.80x = 442,974,568,194,763,712
  5. Step 5: Solve for x
    x = 442,974,568,194,763,712/769,559,421.80
  6. Step 6: Final answer
    x = 575,621,005.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.