Home / 1,420,190,012.40-2,128,773,364.20-546,453,769.20

Finding the Fourth Proportional to 1,420,190,012.40, 2,128,773,364.20 and 546,453,769.20

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Solution

The fourth proportional to 1,420,190,012.40, 2,128,773,364.20 and 546,453,769.20 is: 819,099,006.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,190,012.40 : 2,128,773,364.20 = 546,453,769.20 : x
  2. Step 2: Convert to fraction form
    1,420,190,012.40/2,128,773,364.20 = 546,453,769.20/x
  3. Step 3: Cross multiply
    1,420,190,012.40x = 2,128,773,364.20 × 546,453,769.20
  4. Step 4: Simplify right side
    1,420,190,012.40x = 1,163,276,228,639,654,400
  5. Step 5: Solve for x
    x = 1,163,276,228,639,654,400/1,420,190,012.40
  6. Step 6: Final answer
    x = 819,099,006.81

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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.