Home / 679,790,330,784.20-938,105,799,434.48-371,141,679,720.54

Finding the Fourth Proportional to 679,790,330,784.20, 938,105,799,434.48 and 371,141,679,720.54

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Solution

The fourth proportional to 679,790,330,784.20, 938,105,799,434.48 and 371,141,679,720.54 is: 512,172,866,236.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,790,330,784.20 : 938,105,799,434.48 = 371,141,679,720.54 : x
  2. Step 2: Convert to fraction form
    679,790,330,784.20/938,105,799,434.48 = 371,141,679,720.54/x
  3. Step 3: Cross multiply
    679,790,330,784.20x = 938,105,799,434.48 × 371,141,679,720.54
  4. Step 4: Simplify right side
    679,790,330,784.20x = 348,170,162,157,692,886,450,176
  5. Step 5: Solve for x
    x = 348,170,162,157,692,886,450,176/679,790,330,784.20
  6. Step 6: Final answer
    x = 512,172,866,236.63

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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.