Home / 825,736,077.60-1,238,604,116.40-280,477,611.60

Finding the Fourth Proportional to 825,736,077.60, 1,238,604,116.40 and 280,477,611.60

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Solution

The fourth proportional to 825,736,077.60, 1,238,604,116.40 and 280,477,611.60 is: 420,716,417.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,736,077.60 : 1,238,604,116.40 = 280,477,611.60 : x
  2. Step 2: Convert to fraction form
    825,736,077.60/1,238,604,116.40 = 280,477,611.60/x
  3. Step 3: Cross multiply
    825,736,077.60x = 1,238,604,116.40 × 280,477,611.60
  4. Step 4: Simplify right side
    825,736,077.60x = 347,400,724,285,800,448
  5. Step 5: Solve for x
    x = 347,400,724,285,800,448/825,736,077.60
  6. Step 6: Final answer
    x = 420,716,417.40

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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.