Home / 770,293,867.80-1,155,590,100.90-387,341,419.80

Finding the Fourth Proportional to 770,293,867.80, 1,155,590,100.90 and 387,341,419.80

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Solution

The fourth proportional to 770,293,867.80, 1,155,590,100.90 and 387,341,419.80 is: 581,087,204.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,293,867.80 : 1,155,590,100.90 = 387,341,419.80 : x
  2. Step 2: Convert to fraction form
    770,293,867.80/1,155,590,100.90 = 387,341,419.80/x
  3. Step 3: Cross multiply
    770,293,867.80x = 1,155,590,100.90 × 387,341,419.80
  4. Step 4: Simplify right side
    770,293,867.80x = 447,607,910,389,431,296
  5. Step 5: Solve for x
    x = 447,607,910,389,431,296/770,293,867.80
  6. Step 6: Final answer
    x = 581,087,204.64

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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.