Home / 769,559,391.80-1,061,963,509.47-417,127,815.72

Finding the Fourth Proportional to 769,559,391.80, 1,061,963,509.47 and 417,127,815.72

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Solution

The fourth proportional to 769,559,391.80, 1,061,963,509.47 and 417,127,815.72 is: 575,620,964.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,559,391.80 : 1,061,963,509.47 = 417,127,815.72 : x
  2. Step 2: Convert to fraction form
    769,559,391.80/1,061,963,509.47 = 417,127,815.72/x
  3. Step 3: Cross multiply
    769,559,391.80x = 1,061,963,509.47 × 417,127,815.72
  4. Step 4: Simplify right side
    769,559,391.80x = 442,974,519,079,566,656
  5. Step 5: Solve for x
    x = 442,974,519,079,566,656/769,559,391.80
  6. Step 6: Final answer
    x = 575,620,964.15

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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.