Home / 620,339,876.64-856,196,062.56-369,591,159.60

Finding the Fourth Proportional to 620,339,876.64, 856,196,062.56 and 369,591,159.60

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Solution

The fourth proportional to 620,339,876.64, 856,196,062.56 and 369,591,159.60 is: 510,111,484.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,339,876.64 : 856,196,062.56 = 369,591,159.60 : x
  2. Step 2: Convert to fraction form
    620,339,876.64/856,196,062.56 = 369,591,159.60/x
  3. Step 3: Cross multiply
    620,339,876.64x = 856,196,062.56 × 369,591,159.60
  4. Step 4: Simplify right side
    620,339,876.64x = 316,442,495,606,504,512
  5. Step 5: Solve for x
    x = 316,442,495,606,504,512/620,339,876.64
  6. Step 6: Final answer
    x = 510,111,484.89

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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.