Home / 751,731,649.40-1,037,376,947.72-421,699,702.52

Finding the Fourth Proportional to 751,731,649.40, 1,037,376,947.72 and 421,699,702.52

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Solution

The fourth proportional to 751,731,649.40, 1,037,376,947.72 and 421,699,702.52 is: 581,938,449.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,731,649.40 : 1,037,376,947.72 = 421,699,702.52 : x
  2. Step 2: Convert to fraction form
    751,731,649.40/1,037,376,947.72 = 421,699,702.52/x
  3. Step 3: Cross multiply
    751,731,649.40x = 1,037,376,947.72 × 421,699,702.52
  4. Step 4: Simplify right side
    751,731,649.40x = 437,461,550,254,629,568
  5. Step 5: Solve for x
    x = 437,461,550,254,629,568/751,731,649.40
  6. Step 6: Final answer
    x = 581,938,449.18

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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.