Home / 213,959,417.60-320,939,126.40-60,603,478.40

Finding the Fourth Proportional to 213,959,417.60, 320,939,126.40 and 60,603,478.40

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Solution

The fourth proportional to 213,959,417.60, 320,939,126.40 and 60,603,478.40 is: 90,905,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,959,417.60 : 320,939,126.40 = 60,603,478.40 : x
  2. Step 2: Convert to fraction form
    213,959,417.60/320,939,126.40 = 60,603,478.40/x
  3. Step 3: Cross multiply
    213,959,417.60x = 320,939,126.40 × 60,603,478.40
  4. Step 4: Simplify right side
    213,959,417.60x = 19,450,027,414,497,268
  5. Step 5: Solve for x
    x = 19,450,027,414,497,268/213,959,417.60
  6. Step 6: Final answer
    x = 90,905,217.60

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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.