Home / 430,970,776.82-646,456,173.77-103,446,289.91

Finding the Fourth Proportional to 430,970,776.82, 646,456,173.77 and 103,446,289.91

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Solution

The fourth proportional to 430,970,776.82, 646,456,173.77 and 103,446,289.91 is: 155,169,436.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,970,776.82 : 646,456,173.77 = 103,446,289.91 : x
  2. Step 2: Convert to fraction form
    430,970,776.82/646,456,173.77 = 103,446,289.91/x
  3. Step 3: Cross multiply
    430,970,776.82x = 646,456,173.77 × 103,446,289.91
  4. Step 4: Simplify right side
    430,970,776.82x = 66,873,492,763,574,600
  5. Step 5: Solve for x
    x = 66,873,492,763,574,600/430,970,776.82
  6. Step 6: Final answer
    x = 155,169,436.91

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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.