Home / 427,429,664.10-641,144,496.15-291,380,768.10

Finding the Fourth Proportional to 427,429,664.10, 641,144,496.15 and 291,380,768.10

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Solution

The fourth proportional to 427,429,664.10, 641,144,496.15 and 291,380,768.10 is: 437,071,152.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,429,664.10 : 641,144,496.15 = 291,380,768.10 : x
  2. Step 2: Convert to fraction form
    427,429,664.10/641,144,496.15 = 291,380,768.10/x
  3. Step 3: Cross multiply
    427,429,664.10x = 641,144,496.15 × 291,380,768.10
  4. Step 4: Simplify right side
    427,429,664.10x = 186,817,175,751,274,496
  5. Step 5: Solve for x
    x = 186,817,175,751,274,496/427,429,664.10
  6. Step 6: Final answer
    x = 437,071,152.15

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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.