Home / 751,731,650.40-1,037,376,949.10-421,699,703.52

Finding the Fourth Proportional to 751,731,650.40, 1,037,376,949.10 and 421,699,703.52

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Solution

The fourth proportional to 751,731,650.40, 1,037,376,949.10 and 421,699,703.52 is: 581,938,450.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,731,650.40 : 1,037,376,949.10 = 421,699,703.52 : x
  2. Step 2: Convert to fraction form
    751,731,650.40/1,037,376,949.10 = 421,699,703.52/x
  3. Step 3: Cross multiply
    751,731,650.40x = 1,037,376,949.10 × 421,699,703.52
  4. Step 4: Simplify right side
    751,731,650.40x = 437,461,551,873,952,128
  5. Step 5: Solve for x
    x = 437,461,551,873,952,128/751,731,650.40
  6. Step 6: Final answer
    x = 581,938,450.56

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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.