Home / 3,112,923,611.60-4,669,385,417.40-2,978,575,326.80

Finding the Fourth Proportional to 3,112,923,611.60, 4,669,385,417.40 and 2,978,575,326.80

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Solution

The fourth proportional to 3,112,923,611.60, 4,669,385,417.40 and 2,978,575,326.80 is: 4,467,862,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112,923,611.60 : 4,669,385,417.40 = 2,978,575,326.80 : x
  2. Step 2: Convert to fraction form
    3,112,923,611.60/4,669,385,417.40 = 2,978,575,326.80/x
  3. Step 3: Cross multiply
    3,112,923,611.60x = 4,669,385,417.40 × 2,978,575,326.80
  4. Step 4: Simplify right side
    3,112,923,611.60x = 13,908,116,195,587,358,720
  5. Step 5: Solve for x
    x = 13,908,116,195,587,358,720/3,112,923,611.60
  6. Step 6: Final answer
    x = 4,467,862,990.20

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Double scale
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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.