Home / 291,347,815.20-437,021,722.80-267,539,258.40

Finding the Fourth Proportional to 291,347,815.20, 437,021,722.80 and 267,539,258.40

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Solution

The fourth proportional to 291,347,815.20, 437,021,722.80 and 267,539,258.40 is: 401,308,887.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,347,815.20 : 437,021,722.80 = 267,539,258.40 : x
  2. Step 2: Convert to fraction form
    291,347,815.20/437,021,722.80 = 267,539,258.40/x
  3. Step 3: Cross multiply
    291,347,815.20x = 437,021,722.80 × 267,539,258.40
  4. Step 4: Simplify right side
    291,347,815.20x = 116,920,467,622,602,384
  5. Step 5: Solve for x
    x = 116,920,467,622,602,384/291,347,815.20
  6. Step 6: Final answer
    x = 401,308,887.60

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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.