Home / 751,748,143.80-1,037,419,517.90-421,730,368.68

Finding the Fourth Proportional to 751,748,143.80, 1,037,419,517.90 and 421,730,368.68

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Solution

The fourth proportional to 751,748,143.80, 1,037,419,517.90 and 421,730,368.68 is: 581,991,880.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,748,143.80 : 1,037,419,517.90 = 421,730,368.68 : x
  2. Step 2: Convert to fraction form
    751,748,143.80/1,037,419,517.90 = 421,730,368.68/x
  3. Step 3: Cross multiply
    751,748,143.80x = 1,037,419,517.90 × 421,730,368.68
  4. Step 4: Simplify right side
    751,748,143.80x = 437,511,315,759,794,880
  5. Step 5: Solve for x
    x = 437,511,315,759,794,880/751,748,143.80
  6. Step 6: Final answer
    x = 581,991,880.35

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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.