Home / 28,370,495,380.80-42,555,743,071.20-7,691,063,188.80

Finding the Fourth Proportional to 28,370,495,380.80, 42,555,743,071.20 and 7,691,063,188.80

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Solution

The fourth proportional to 28,370,495,380.80, 42,555,743,071.20 and 7,691,063,188.80 is: 11,536,594,783.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370,495,380.80 : 42,555,743,071.20 = 7,691,063,188.80 : x
  2. Step 2: Convert to fraction form
    28,370,495,380.80/42,555,743,071.20 = 7,691,063,188.80/x
  3. Step 3: Cross multiply
    28,370,495,380.80x = 42,555,743,071.20 × 7,691,063,188.80
  4. Step 4: Simplify right side
    28,370,495,380.80x = 327,298,909,006,936,932,352
  5. Step 5: Solve for x
    x = 327,298,909,006,936,932,352/28,370,495,380.80
  6. Step 6: Final answer
    x = 11,536,594,783.20

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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.