Home / 99,813,427.60-149,720,141.40-85,200,768.40

Finding the Fourth Proportional to 99,813,427.60, 149,720,141.40 and 85,200,768.40

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Solution

The fourth proportional to 99,813,427.60, 149,720,141.40 and 85,200,768.40 is: 127,801,152.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,813,427.60 : 149,720,141.40 = 85,200,768.40 : x
  2. Step 2: Convert to fraction form
    99,813,427.60/149,720,141.40 = 85,200,768.40/x
  3. Step 3: Cross multiply
    99,813,427.60x = 149,720,141.40 × 85,200,768.40
  4. Step 4: Simplify right side
    99,813,427.60x = 12,756,271,092,236,654
  5. Step 5: Solve for x
    x = 12,756,271,092,236,654/99,813,427.60
  6. Step 6: Final answer
    x = 127,801,152.60

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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.