Home / 570,132,524.22-786,785,042.07-309,372,140.22

Finding the Fourth Proportional to 570,132,524.22, 786,785,042.07 and 309,372,140.22

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Solution

The fourth proportional to 570,132,524.22, 786,785,042.07 and 309,372,140.22 is: 426,934,724.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,132,524.22 : 786,785,042.07 = 309,372,140.22 : x
  2. Step 2: Convert to fraction form
    570,132,524.22/786,785,042.07 = 309,372,140.22/x
  3. Step 3: Cross multiply
    570,132,524.22x = 786,785,042.07 × 309,372,140.22
  4. Step 4: Simplify right side
    570,132,524.22x = 243,409,372,358,278,688
  5. Step 5: Solve for x
    x = 243,409,372,358,278,688/570,132,524.22
  6. Step 6: Final answer
    x = 426,934,724.85

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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.