Home / 19,959,665.40-29,939,498.10-7,178,509.35

Finding the Fourth Proportional to 19,959,665.40, 29,939,498.10 and 7,178,509.35

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Solution

The fourth proportional to 19,959,665.40, 29,939,498.10 and 7,178,509.35 is: 10,767,764.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959,665.40 : 29,939,498.10 = 7,178,509.35 : x
  2. Step 2: Convert to fraction form
    19,959,665.40/29,939,498.10 = 7,178,509.35/x
  3. Step 3: Cross multiply
    19,959,665.40x = 29,939,498.10 × 7,178,509.35
  4. Step 4: Simplify right side
    19,959,665.40x = 214,920,967,045,157.25
  5. Step 5: Solve for x
    x = 214,920,967,045,157.25/19,959,665.40
  6. Step 6: Final answer
    x = 10,767,764.03

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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.