Home / 19,959,666.40-29,939,499.60-7,178,510.35

Finding the Fourth Proportional to 19,959,666.40, 29,939,499.60 and 7,178,510.35

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Solution

The fourth proportional to 19,959,666.40, 29,939,499.60 and 7,178,510.35 is: 10,767,765.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959,666.40 : 29,939,499.60 = 7,178,510.35 : x
  2. Step 2: Convert to fraction form
    19,959,666.40/29,939,499.60 = 7,178,510.35/x
  3. Step 3: Cross multiply
    19,959,666.40x = 29,939,499.60 × 7,178,510.35
  4. Step 4: Simplify right side
    19,959,666.40x = 214,921,007,752,420.88
  5. Step 5: Solve for x
    x = 214,921,007,752,420.88/19,959,666.40
  6. Step 6: Final answer
    x = 10,767,765.53

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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.