Home / 338,112,000.80-507,168,001.20-315,269,223.20

Finding the Fourth Proportional to 338,112,000.80, 507,168,001.20 and 315,269,223.20

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Solution

The fourth proportional to 338,112,000.80, 507,168,001.20 and 315,269,223.20 is: 472,903,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,112,000.80 : 507,168,001.20 = 315,269,223.20 : x
  2. Step 2: Convert to fraction form
    338,112,000.80/507,168,001.20 = 315,269,223.20/x
  3. Step 3: Cross multiply
    338,112,000.80x = 507,168,001.20 × 315,269,223.20
  4. Step 4: Simplify right side
    338,112,000.80x = 159,894,461,770,220,672
  5. Step 5: Solve for x
    x = 159,894,461,770,220,672/338,112,000.80
  6. Step 6: Final answer
    x = 472,903,834.80

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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.