Home / 976,671,819.60-1,465,007,729.40-330,439,563.60

Finding the Fourth Proportional to 976,671,819.60, 1,465,007,729.40 and 330,439,563.60

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Solution

The fourth proportional to 976,671,819.60, 1,465,007,729.40 and 330,439,563.60 is: 495,659,345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,671,819.60 : 1,465,007,729.40 = 330,439,563.60 : x
  2. Step 2: Convert to fraction form
    976,671,819.60/1,465,007,729.40 = 330,439,563.60/x
  3. Step 3: Cross multiply
    976,671,819.60x = 1,465,007,729.40 × 330,439,563.60
  4. Step 4: Simplify right side
    976,671,819.60x = 484,096,514,773,562,944
  5. Step 5: Solve for x
    x = 484,096,514,773,562,944/976,671,819.60
  6. Step 6: Final answer
    x = 495,659,345.40

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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.