Home / 298,920,021.40-448,380,032.10-217,290,683.80

Finding the Fourth Proportional to 298,920,021.40, 448,380,032.10 and 217,290,683.80

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Solution

The fourth proportional to 298,920,021.40, 448,380,032.10 and 217,290,683.80 is: 325,936,025.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,920,021.40 : 448,380,032.10 = 217,290,683.80 : x
  2. Step 2: Convert to fraction form
    298,920,021.40/448,380,032.10 = 217,290,683.80/x
  3. Step 3: Cross multiply
    298,920,021.40x = 448,380,032.10 × 217,290,683.80
  4. Step 4: Simplify right side
    298,920,021.40x = 97,428,803,777,274,960
  5. Step 5: Solve for x
    x = 97,428,803,777,274,960/298,920,021.40
  6. Step 6: Final answer
    x = 325,936,025.70

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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.