Home / 99,856,281.60-149,784,422.40-85,243,622.40

Finding the Fourth Proportional to 99,856,281.60, 149,784,422.40 and 85,243,622.40

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Solution

The fourth proportional to 99,856,281.60, 149,784,422.40 and 85,243,622.40 is: 127,865,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,856,281.60 : 149,784,422.40 = 85,243,622.40 : x
  2. Step 2: Convert to fraction form
    99,856,281.60/149,784,422.40 = 85,243,622.40/x
  3. Step 3: Cross multiply
    99,856,281.60x = 149,784,422.40 × 85,243,622.40
  4. Step 4: Simplify right side
    99,856,281.60x = 12,768,166,744,467,704
  5. Step 5: Solve for x
    x = 12,768,166,744,467,704/99,856,281.60
  6. Step 6: Final answer
    x = 127,865,433.60

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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.