Home / 191,784,967.20-287,714,775.60-82,609,927.20

Finding the Fourth Proportional to 191,784,967.20, 287,714,775.60 and 82,609,927.20

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Solution

The fourth proportional to 191,784,967.20, 287,714,775.60 and 82,609,927.20 is: 123,930,968.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,784,967.20 : 287,714,775.60 = 82,609,927.20 : x
  2. Step 2: Convert to fraction form
    191,784,967.20/287,714,775.60 = 82,609,927.20/x
  3. Step 3: Cross multiply
    191,784,967.20x = 287,714,775.60 × 82,609,927.20
  4. Step 4: Simplify right side
    191,784,967.20x = 23,768,096,666,680,340
  5. Step 5: Solve for x
    x = 23,768,096,666,680,340/191,784,967.20
  6. Step 6: Final answer
    x = 123,930,968.18

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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.