Home / 637,778,755.09-956,321,946.94-287,615,119.19

Finding the Fourth Proportional to 637,778,755.09, 956,321,946.94 and 287,615,119.19

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Solution

The fourth proportional to 637,778,755.09, 956,321,946.94 and 287,615,119.19 is: 431,266,561.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,778,755.09 : 956,321,946.94 = 287,615,119.19 : x
  2. Step 2: Convert to fraction form
    637,778,755.09/956,321,946.94 = 287,615,119.19/x
  3. Step 3: Cross multiply
    637,778,755.09x = 956,321,946.94 × 287,615,119.19
  4. Step 4: Simplify right side
    637,778,755.09x = 275,052,650,753,575,584
  5. Step 5: Solve for x
    x = 275,052,650,753,575,584/637,778,755.09
  6. Step 6: Final answer
    x = 431,266,561.57

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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.