Home / 260,733,840.60-391,100,760.90-99,154,781.40

Finding the Fourth Proportional to 260,733,840.60, 391,100,760.90 and 99,154,781.40

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Solution

The fourth proportional to 260,733,840.60, 391,100,760.90 and 99,154,781.40 is: 148,732,172.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,733,840.60 : 391,100,760.90 = 99,154,781.40 : x
  2. Step 2: Convert to fraction form
    260,733,840.60/391,100,760.90 = 99,154,781.40/x
  3. Step 3: Cross multiply
    260,733,840.60x = 391,100,760.90 × 99,154,781.40
  4. Step 4: Simplify right side
    260,733,840.60x = 38,779,510,452,413,168
  5. Step 5: Solve for x
    x = 38,779,510,452,413,168/260,733,840.60
  6. Step 6: Final answer
    x = 148,732,172.10

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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.