Home / 471,146,708.40-706,720,062.60-430,332,039.60

Finding the Fourth Proportional to 471,146,708.40, 706,720,062.60 and 430,332,039.60

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Solution

The fourth proportional to 471,146,708.40, 706,720,062.60 and 430,332,039.60 is: 645,498,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,146,708.40 : 706,720,062.60 = 430,332,039.60 : x
  2. Step 2: Convert to fraction form
    471,146,708.40/706,720,062.60 = 430,332,039.60/x
  3. Step 3: Cross multiply
    471,146,708.40x = 706,720,062.60 × 430,332,039.60
  4. Step 4: Simplify right side
    471,146,708.40x = 304,124,285,964,897,728
  5. Step 5: Solve for x
    x = 304,124,285,964,897,728/471,146,708.40
  6. Step 6: Final answer
    x = 645,498,059.40

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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.