Home / 851,038,654.86-1,174,382,729.82-493,778,755.08

Finding the Fourth Proportional to 851,038,654.86, 1,174,382,729.82 and 493,778,755.08

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Solution

The fourth proportional to 851,038,654.86, 1,174,382,729.82 and 493,778,755.08 is: 681,385,315.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,038,654.86 : 1,174,382,729.82 = 493,778,755.08 : x
  2. Step 2: Convert to fraction form
    851,038,654.86/1,174,382,729.82 = 493,778,755.08/x
  3. Step 3: Cross multiply
    851,038,654.86x = 1,174,382,729.82 × 493,778,755.08
  4. Step 4: Simplify right side
    851,038,654.86x = 579,885,242,317,971,584
  5. Step 5: Solve for x
    x = 579,885,242,317,971,584/851,038,654.86
  6. Step 6: Final answer
    x = 681,385,315.47

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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.