Home / 313,830,429.20-470,745,643.80-98,419,331.60

Finding the Fourth Proportional to 313,830,429.20, 470,745,643.80 and 98,419,331.60

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Solution

The fourth proportional to 313,830,429.20, 470,745,643.80 and 98,419,331.60 is: 147,628,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,830,429.20 : 470,745,643.80 = 98,419,331.60 : x
  2. Step 2: Convert to fraction form
    313,830,429.20/470,745,643.80 = 98,419,331.60/x
  3. Step 3: Cross multiply
    313,830,429.20x = 470,745,643.80 × 98,419,331.60
  4. Step 4: Simplify right side
    313,830,429.20x = 46,330,471,616,407,680
  5. Step 5: Solve for x
    x = 46,330,471,616,407,680/313,830,429.20
  6. Step 6: Final answer
    x = 147,628,997.40

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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.