Home / 977,285,820.60-1,464,794,990.10-394,732,006.20

Finding the Fourth Proportional to 977,285,820.60, 1,464,794,990.10 and 394,732,006.20

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Solution

The fourth proportional to 977,285,820.60, 1,464,794,990.10 and 394,732,006.20 is: 591,640,084.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,285,820.60 : 1,464,794,990.10 = 394,732,006.20 : x
  2. Step 2: Convert to fraction form
    977,285,820.60/1,464,794,990.10 = 394,732,006.20/x
  3. Step 3: Cross multiply
    977,285,820.60x = 1,464,794,990.10 × 394,732,006.20
  4. Step 4: Simplify right side
    977,285,820.60x = 578,201,465,113,882,112
  5. Step 5: Solve for x
    x = 578,201,465,113,882,112/977,285,820.60
  6. Step 6: Final answer
    x = 591,640,084.12

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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.