Home / 28,066,808.20-42,100,212.30-18,996,881.80

Finding the Fourth Proportional to 28,066,808.20, 42,100,212.30 and 18,996,881.80

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Solution

The fourth proportional to 28,066,808.20, 42,100,212.30 and 18,996,881.80 is: 28,495,322.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066,808.20 : 42,100,212.30 = 18,996,881.80 : x
  2. Step 2: Convert to fraction form
    28,066,808.20/42,100,212.30 = 18,996,881.80/x
  3. Step 3: Cross multiply
    28,066,808.20x = 42,100,212.30 × 18,996,881.80
  4. Step 4: Simplify right side
    28,066,808.20x = 799,772,756,818,006.12
  5. Step 5: Solve for x
    x = 799,772,756,818,006.12/28,066,808.20
  6. Step 6: Final answer
    x = 28,495,322.70

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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.