Home / 313,117,149.45-432,089,828.10-173,896,879.26

Finding the Fourth Proportional to 313,117,149.45, 432,089,828.10 and 173,896,879.26

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Solution

The fourth proportional to 313,117,149.45, 432,089,828.10 and 173,896,879.26 is: 239,971,118.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,117,149.45 : 432,089,828.10 = 173,896,879.26 : x
  2. Step 2: Convert to fraction form
    313,117,149.45/432,089,828.10 = 173,896,879.26/x
  3. Step 3: Cross multiply
    313,117,149.45x = 432,089,828.10 × 173,896,879.26
  4. Step 4: Simplify right side
    313,117,149.45x = 75,139,072,666,579,856
  5. Step 5: Solve for x
    x = 75,139,072,666,579,856/313,117,149.45
  6. Step 6: Final answer
    x = 239,971,118.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.