Home / 313,117,056.47-432,089,700.08-173,896,786.31

Finding the Fourth Proportional to 313,117,056.47, 432,089,700.08 and 173,896,786.31

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Solution

The fourth proportional to 313,117,056.47, 432,089,700.08 and 173,896,786.31 is: 239,970,990.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,117,056.47 : 432,089,700.08 = 173,896,786.31 : x
  2. Step 2: Convert to fraction form
    313,117,056.47/432,089,700.08 = 173,896,786.31/x
  3. Step 3: Cross multiply
    313,117,056.47x = 432,089,700.08 × 173,896,786.31
  4. Step 4: Simplify right side
    313,117,056.47x = 75,139,010,239,269,408
  5. Step 5: Solve for x
    x = 75,139,010,239,269,408/313,117,056.47
  6. Step 6: Final answer
    x = 239,970,990.68

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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.