Home / 338,520,156.80-507,780,235.20-318,112,822.40

Finding the Fourth Proportional to 338,520,156.80, 507,780,235.20 and 318,112,822.40

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Solution

The fourth proportional to 338,520,156.80, 507,780,235.20 and 318,112,822.40 is: 477,169,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,520,156.80 : 507,780,235.20 = 318,112,822.40 : x
  2. Step 2: Convert to fraction form
    338,520,156.80/507,780,235.20 = 318,112,822.40/x
  3. Step 3: Cross multiply
    338,520,156.80x = 507,780,235.20 × 318,112,822.40
  4. Step 4: Simplify right side
    338,520,156.80x = 161,531,403,778,407,808
  5. Step 5: Solve for x
    x = 161,531,403,778,407,808/338,520,156.80
  6. Step 6: Final answer
    x = 477,169,233.60

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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.