Home / 28,985,881.20-43,478,821.80-19,430,732.40

Finding the Fourth Proportional to 28,985,881.20, 43,478,821.80 and 19,430,732.40

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Solution

The fourth proportional to 28,985,881.20, 43,478,821.80 and 19,430,732.40 is: 29,146,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985,881.20 : 43,478,821.80 = 19,430,732.40 : x
  2. Step 2: Convert to fraction form
    28,985,881.20/43,478,821.80 = 19,430,732.40/x
  3. Step 3: Cross multiply
    28,985,881.20x = 43,478,821.80 × 19,430,732.40
  4. Step 4: Simplify right side
    28,985,881.20x = 844,825,351,463,086.25
  5. Step 5: Solve for x
    x = 844,825,351,463,086.25/28,985,881.20
  6. Step 6: Final answer
    x = 29,146,098.60

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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.