Home / 20,373,087.60-30,559,631.40-18,938,196.90

Finding the Fourth Proportional to 20,373,087.60, 30,559,631.40 and 18,938,196.90

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Solution

The fourth proportional to 20,373,087.60, 30,559,631.40 and 18,938,196.90 is: 28,407,295.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373,087.60 : 30,559,631.40 = 18,938,196.90 : x
  2. Step 2: Convert to fraction form
    20,373,087.60/30,559,631.40 = 18,938,196.90/x
  3. Step 3: Cross multiply
    20,373,087.60x = 30,559,631.40 × 18,938,196.90
  4. Step 4: Simplify right side
    20,373,087.60x = 578,744,316,644,622.62
  5. Step 5: Solve for x
    x = 578,744,316,644,622.62/20,373,087.60
  6. Step 6: Final answer
    x = 28,407,295.35

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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.