Home / 866,242,716.93-1,195,465,509.09-489,932,666.28

Finding the Fourth Proportional to 866,242,716.93, 1,195,465,509.09 and 489,932,666.28

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Solution

The fourth proportional to 866,242,716.93, 1,195,465,509.09 and 489,932,666.28 is: 676,135,675.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,242,716.93 : 1,195,465,509.09 = 489,932,666.28 : x
  2. Step 2: Convert to fraction form
    866,242,716.93/1,195,465,509.09 = 489,932,666.28/x
  3. Step 3: Cross multiply
    866,242,716.93x = 1,195,465,509.09 × 489,932,666.28
  4. Step 4: Simplify right side
    866,242,716.93x = 585,697,604,314,241,152
  5. Step 5: Solve for x
    x = 585,697,604,314,241,152/866,242,716.93
  6. Step 6: Final answer
    x = 676,135,675.22

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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.