Home / 628,265,384.16-867,100,488.60-477,309,633.72

Finding the Fourth Proportional to 628,265,384.16, 867,100,488.60 and 477,309,633.72

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Solution

The fourth proportional to 628,265,384.16, 867,100,488.60 and 477,309,633.72 is: 658,758,905.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,265,384.16 : 867,100,488.60 = 477,309,633.72 : x
  2. Step 2: Convert to fraction form
    628,265,384.16/867,100,488.60 = 477,309,633.72/x
  3. Step 3: Cross multiply
    628,265,384.16x = 867,100,488.60 × 477,309,633.72
  4. Step 4: Simplify right side
    628,265,384.16x = 413,875,416,612,099,072
  5. Step 5: Solve for x
    x = 413,875,416,612,099,072/628,265,384.16
  6. Step 6: Final answer
    x = 658,758,905.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.