Home / 78,528,055.55-117,792,083.33-30,658,999.55

Finding the Fourth Proportional to 78,528,055.55, 117,792,083.33 and 30,658,999.55

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Solution

The fourth proportional to 78,528,055.55, 117,792,083.33 and 30,658,999.55 is: 45,988,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,528,055.55 : 117,792,083.33 = 30,658,999.55 : x
  2. Step 2: Convert to fraction form
    78,528,055.55/117,792,083.33 = 30,658,999.55/x
  3. Step 3: Cross multiply
    78,528,055.55x = 117,792,083.33 × 30,658,999.55
  4. Step 4: Simplify right side
    78,528,055.55x = 3,611,387,429,654,737.50
  5. Step 5: Solve for x
    x = 3,611,387,429,654,737.50/78,528,055.55
  6. Step 6: Final answer
    x = 45,988,499.33

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Double scale
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Similar ratio
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1.5x scale

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.