Home / 291,165,080.48-436,964,534-213,642,308.96

Finding the Fourth Proportional to 291,165,080.48, 436,964,534 and 213,642,308.96

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Solution

The fourth proportional to 291,165,080.48, 436,964,534 and 213,642,308.96 is: 320,622,623.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,165,080.48 : 436,964,534 = 213,642,308.96 : x
  2. Step 2: Convert to fraction form
    291,165,080.48/436,964,534 = 213,642,308.96/x
  3. Step 3: Cross multiply
    291,165,080.48x = 436,964,534 × 213,642,308.96
  4. Step 4: Simplify right side
    291,165,080.48x = 93,354,111,977,390,432
  5. Step 5: Solve for x
    x = 93,354,111,977,390,432/291,165,080.48
  6. Step 6: Final answer
    x = 320,622,623.51

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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.