Home / 472,392,904.80-708,589,357.20-435,085,746.60

Finding the Fourth Proportional to 472,392,904.80, 708,589,357.20 and 435,085,746.60

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Solution

The fourth proportional to 472,392,904.80, 708,589,357.20 and 435,085,746.60 is: 652,628,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,904.80 : 708,589,357.20 = 435,085,746.60 : x
  2. Step 2: Convert to fraction form
    472,392,904.80/708,589,357.20 = 435,085,746.60/x
  3. Step 3: Cross multiply
    472,392,904.80x = 708,589,357.20 × 435,085,746.60
  4. Step 4: Simplify right side
    472,392,904.80x = 308,297,129,510,176,128
  5. Step 5: Solve for x
    x = 308,297,129,510,176,128/472,392,904.80
  6. Step 6: Final answer
    x = 652,628,619.90

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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.