Home / 1,208,830,663.70-1,812,350,200.35-819,682,298.90

Finding the Fourth Proportional to 1,208,830,663.70, 1,812,350,200.35 and 819,682,298.90

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Solution

The fourth proportional to 1,208,830,663.70, 1,812,350,200.35 and 819,682,298.90 is: 1,228,916,028.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,830,663.70 : 1,812,350,200.35 = 819,682,298.90 : x
  2. Step 2: Convert to fraction form
    1,208,830,663.70/1,812,350,200.35 = 819,682,298.90/x
  3. Step 3: Cross multiply
    1,208,830,663.70x = 1,812,350,200.35 × 819,682,298.90
  4. Step 4: Simplify right side
    1,208,830,663.70x = 1,485,551,378,634,763,520
  5. Step 5: Solve for x
    x = 1,485,551,378,634,763,520/1,208,830,663.70
  6. Step 6: Final answer
    x = 1,228,916,028.72

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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.