Home / 1,175,167,438.80-1,621,730,991.42-646,520,083.86

Finding the Fourth Proportional to 1,175,167,438.80, 1,621,730,991.42 and 646,520,083.86

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Solution

The fourth proportional to 1,175,167,438.80, 1,621,730,991.42 and 646,520,083.86 is: 892,197,674.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175,167,438.80 : 1,621,730,991.42 = 646,520,083.86 : x
  2. Step 2: Convert to fraction form
    1,175,167,438.80/1,621,730,991.42 = 646,520,083.86/x
  3. Step 3: Cross multiply
    1,175,167,438.80x = 1,621,730,991.42 × 646,520,083.86
  4. Step 4: Simplify right side
    1,175,167,438.80x = 1,048,481,656,571,219,456
  5. Step 5: Solve for x
    x = 1,048,481,656,571,219,456/1,175,167,438.80
  6. Step 6: Final answer
    x = 892,197,674.95

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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.