Home / 638,976,051.90-958,464,077.85-256,298,240.70

Finding the Fourth Proportional to 638,976,051.90, 958,464,077.85 and 256,298,240.70

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Solution

The fourth proportional to 638,976,051.90, 958,464,077.85 and 256,298,240.70 is: 384,447,361.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,976,051.90 : 958,464,077.85 = 256,298,240.70 : x
  2. Step 2: Convert to fraction form
    638,976,051.90/958,464,077.85 = 256,298,240.70/x
  3. Step 3: Cross multiply
    638,976,051.90x = 958,464,077.85 × 256,298,240.70
  4. Step 4: Simplify right side
    638,976,051.90x = 245,652,656,927,102,848
  5. Step 5: Solve for x
    x = 245,652,656,927,102,848/638,976,051.90
  6. Step 6: Final answer
    x = 384,447,361.05

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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.