Home / 811,927,338.87-1,120,460,193.77-440,649,370.25

Finding the Fourth Proportional to 811,927,338.87, 1,120,460,193.77 and 440,649,370.25

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Solution

The fourth proportional to 811,927,338.87, 1,120,460,193.77 and 440,649,370.25 is: 608,096,383.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,927,338.87 : 1,120,460,193.77 = 440,649,370.25 : x
  2. Step 2: Convert to fraction form
    811,927,338.87/1,120,460,193.77 = 440,649,370.25/x
  3. Step 3: Cross multiply
    811,927,338.87x = 1,120,460,193.77 × 440,649,370.25
  4. Step 4: Simplify right side
    811,927,338.87x = 493,730,078,767,137,984
  5. Step 5: Solve for x
    x = 493,730,078,767,137,984/811,927,338.87
  6. Step 6: Final answer
    x = 608,096,383.91

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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.