Home / 314,930,419.20-472,395,628.80-84,922,754.40

Finding the Fourth Proportional to 314,930,419.20, 472,395,628.80 and 84,922,754.40

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Solution

The fourth proportional to 314,930,419.20, 472,395,628.80 and 84,922,754.40 is: 127,384,131.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,930,419.20 : 472,395,628.80 = 84,922,754.40 : x
  2. Step 2: Convert to fraction form
    314,930,419.20/472,395,628.80 = 84,922,754.40/x
  3. Step 3: Cross multiply
    314,930,419.20x = 472,395,628.80 × 84,922,754.40
  4. Step 4: Simplify right side
    314,930,419.20x = 40,117,137,964,215,968
  5. Step 5: Solve for x
    x = 40,117,137,964,215,968/314,930,419.20
  6. Step 6: Final answer
    x = 127,384,131.60

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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.