Home / 713,496,003.40-1,070,244,005.10-638,669,110.60

Finding the Fourth Proportional to 713,496,003.40, 1,070,244,005.10 and 638,669,110.60

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Solution

The fourth proportional to 713,496,003.40, 1,070,244,005.10 and 638,669,110.60 is: 958,003,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,496,003.40 : 1,070,244,005.10 = 638,669,110.60 : x
  2. Step 2: Convert to fraction form
    713,496,003.40/1,070,244,005.10 = 638,669,110.60/x
  3. Step 3: Cross multiply
    713,496,003.40x = 1,070,244,005.10 × 638,669,110.60
  4. Step 4: Simplify right side
    713,496,003.40x = 683,531,786,862,198,912
  5. Step 5: Solve for x
    x = 683,531,786,862,198,912/713,496,003.40
  6. Step 6: Final answer
    x = 958,003,665.90

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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.