Home / 28,066,816.70-42,100,225.05-18,996,890.30

Finding the Fourth Proportional to 28,066,816.70, 42,100,225.05 and 18,996,890.30

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Solution

The fourth proportional to 28,066,816.70, 42,100,225.05 and 18,996,890.30 is: 28,495,335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066,816.70 : 42,100,225.05 = 18,996,890.30 : x
  2. Step 2: Convert to fraction form
    28,066,816.70/42,100,225.05 = 18,996,890.30/x
  3. Step 3: Cross multiply
    28,066,816.70x = 42,100,225.05 × 18,996,890.30
  4. Step 4: Simplify right side
    28,066,816.70x = 799,773,356,880,162
  5. Step 5: Solve for x
    x = 799,773,356,880,162/28,066,816.70
  6. Step 6: Final answer
    x = 28,495,335.45

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Double scale
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Similar ratio
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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.