Home / 539,430,736.38-744,414,417.15-291,912,090.54

Finding the Fourth Proportional to 539,430,736.38, 744,414,417.15 and 291,912,090.54

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Solution

The fourth proportional to 539,430,736.38, 744,414,417.15 and 291,912,090.54 is: 402,838,685.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,430,736.38 : 744,414,417.15 = 291,912,090.54 : x
  2. Step 2: Convert to fraction form
    539,430,736.38/744,414,417.15 = 291,912,090.54/x
  3. Step 3: Cross multiply
    539,430,736.38x = 744,414,417.15 × 291,912,090.54
  4. Step 4: Simplify right side
    539,430,736.38x = 217,303,568,738,372,128
  5. Step 5: Solve for x
    x = 217,303,568,738,372,128/539,430,736.38
  6. Step 6: Final answer
    x = 402,838,685.46

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1.5x scale

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.