Home / 245,729,856.60-368,594,784.90-221,070,994.20

Finding the Fourth Proportional to 245,729,856.60, 368,594,784.90 and 221,070,994.20

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Solution

The fourth proportional to 245,729,856.60, 368,594,784.90 and 221,070,994.20 is: 331,606,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,729,856.60 : 368,594,784.90 = 221,070,994.20 : x
  2. Step 2: Convert to fraction form
    245,729,856.60/368,594,784.90 = 221,070,994.20/x
  3. Step 3: Cross multiply
    245,729,856.60x = 368,594,784.90 × 221,070,994.20
  4. Step 4: Simplify right side
    245,729,856.60x = 81,485,615,554,778,144
  5. Step 5: Solve for x
    x = 81,485,615,554,778,144/245,729,856.60
  6. Step 6: Final answer
    x = 331,606,491.30

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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.