Home / 28,748,880.40-43,123,320.60-19,133,078.80

Finding the Fourth Proportional to 28,748,880.40, 43,123,320.60 and 19,133,078.80

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Solution

The fourth proportional to 28,748,880.40, 43,123,320.60 and 19,133,078.80 is: 28,699,618.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748,880.40 : 43,123,320.60 = 19,133,078.80 : x
  2. Step 2: Convert to fraction form
    28,748,880.40/43,123,320.60 = 19,133,078.80/x
  3. Step 3: Cross multiply
    28,748,880.40x = 43,123,320.60 × 19,133,078.80
  4. Step 4: Simplify right side
    28,748,880.40x = 825,081,891,157,463.38
  5. Step 5: Solve for x
    x = 825,081,891,157,463.38/28,748,880.40
  6. Step 6: Final answer
    x = 28,699,618.20

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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.