Home / 917,056,453.92-1,265,558,483.52-520,542,091.68

Finding the Fourth Proportional to 917,056,453.92, 1,265,558,483.52 and 520,542,091.68

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Solution

The fourth proportional to 917,056,453.92, 1,265,558,483.52 and 520,542,091.68 is: 718,359,766.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,056,453.92 : 1,265,558,483.52 = 520,542,091.68 : x
  2. Step 2: Convert to fraction form
    917,056,453.92/1,265,558,483.52 = 520,542,091.68/x
  3. Step 3: Cross multiply
    917,056,453.92x = 1,265,558,483.52 × 520,542,091.68
  4. Step 4: Simplify right side
    917,056,453.92x = 658,776,460,154,869,632
  5. Step 5: Solve for x
    x = 658,776,460,154,869,632/917,056,453.92
  6. Step 6: Final answer
    x = 718,359,766.55

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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.