Home / 1,208,834,851.20-1,812,356,481.60-819,686,486.40

Finding the Fourth Proportional to 1,208,834,851.20, 1,812,356,481.60 and 819,686,486.40

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Solution

The fourth proportional to 1,208,834,851.20, 1,812,356,481.60 and 819,686,486.40 is: 1,228,922,308.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,834,851.20 : 1,812,356,481.60 = 819,686,486.40 : x
  2. Step 2: Convert to fraction form
    1,208,834,851.20/1,812,356,481.60 = 819,686,486.40/x
  3. Step 3: Cross multiply
    1,208,834,851.20x = 1,812,356,481.60 × 819,686,486.40
  4. Step 4: Simplify right side
    1,208,834,851.20x = 1,485,564,116,506,970,112
  5. Step 5: Solve for x
    x = 1,485,564,116,506,970,112/1,208,834,851.20
  6. Step 6: Final answer
    x = 1,228,922,308.98

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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.