Home / 770,678,243.15-1,063,539,761.31-418,254,638.58

Finding the Fourth Proportional to 770,678,243.15, 1,063,539,761.31 and 418,254,638.58

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Solution

The fourth proportional to 770,678,243.15, 1,063,539,761.31 and 418,254,638.58 is: 577,193,455.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,678,243.15 : 1,063,539,761.31 = 418,254,638.58 : x
  2. Step 2: Convert to fraction form
    770,678,243.15/1,063,539,761.31 = 418,254,638.58/x
  3. Step 3: Cross multiply
    770,678,243.15x = 1,063,539,761.31 × 418,254,638.58
  4. Step 4: Simplify right side
    770,678,243.15x = 444,830,438,482,173,504
  5. Step 5: Solve for x
    x = 444,830,438,482,173,504/770,678,243.15
  6. Step 6: Final answer
    x = 577,193,455.81

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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.