Home / 769,559,391.87-1,061,963,509.54-417,127,815.78

Finding the Fourth Proportional to 769,559,391.87, 1,061,963,509.54 and 417,127,815.78

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Solution

The fourth proportional to 769,559,391.87, 1,061,963,509.54 and 417,127,815.78 is: 575,620,964.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,559,391.87 : 1,061,963,509.54 = 417,127,815.78 : x
  2. Step 2: Convert to fraction form
    769,559,391.87/1,061,963,509.54 = 417,127,815.78/x
  3. Step 3: Cross multiply
    769,559,391.87x = 1,061,963,509.54 × 417,127,815.78
  4. Step 4: Simplify right side
    769,559,391.87x = 442,974,519,172,483,328
  5. Step 5: Solve for x
    x = 442,974,519,172,483,328/769,559,391.87
  6. Step 6: Final answer
    x = 575,620,964.22

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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.