Home / 977,285,817.60-1,464,794,985.60-394,732,003.20

Finding the Fourth Proportional to 977,285,817.60, 1,464,794,985.60 and 394,732,003.20

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Solution

The fourth proportional to 977,285,817.60, 1,464,794,985.60 and 394,732,003.20 is: 591,640,079.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,285,817.60 : 1,464,794,985.60 = 394,732,003.20 : x
  2. Step 2: Convert to fraction form
    977,285,817.60/1,464,794,985.60 = 394,732,003.20/x
  3. Step 3: Cross multiply
    977,285,817.60x = 1,464,794,985.60 × 394,732,003.20
  4. Step 4: Simplify right side
    977,285,817.60x = 578,201,458,943,203,072
  5. Step 5: Solve for x
    x = 578,201,458,943,203,072/977,285,817.60
  6. Step 6: Final answer
    x = 591,640,079.63

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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.