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Finding the Fourth Proportional to 108,863,999.20, 152,611,152.80 and 108,863,999.20

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Solution

The fourth proportional to 108,863,999.20, 152,611,152.80 and 108,863,999.20 is: 152,611,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,863,999.20 : 152,611,152.80 = 108,863,999.20 : x
  2. Step 2: Convert to fraction form
    108,863,999.20/152,611,152.80 = 108,863,999.20/x
  3. Step 3: Cross multiply
    108,863,999.20x = 152,611,152.80 × 108,863,999.20
  4. Step 4: Simplify right side
    108,863,999.20x = 16,613,860,416,330,280
  5. Step 5: Solve for x
    x = 16,613,860,416,330,280/108,863,999.20
  6. Step 6: Final answer
    x = 152,611,152.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.