Home / 438,273,009.60-657,409,514.40-211,780,593.60

Finding the Fourth Proportional to 438,273,009.60, 657,409,514.40 and 211,780,593.60

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Solution

The fourth proportional to 438,273,009.60, 657,409,514.40 and 211,780,593.60 is: 317,670,890.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,273,009.60 : 657,409,514.40 = 211,780,593.60 : x
  2. Step 2: Convert to fraction form
    438,273,009.60/657,409,514.40 = 211,780,593.60/x
  3. Step 3: Cross multiply
    438,273,009.60x = 657,409,514.40 × 211,780,593.60
  4. Step 4: Simplify right side
    438,273,009.60x = 139,226,577,197,919,744
  5. Step 5: Solve for x
    x = 139,226,577,197,919,744/438,273,009.60
  6. Step 6: Final answer
    x = 317,670,890.40

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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.