Home / 320,828,392.32-480,413,779.50-221,424,763.07

Finding the Fourth Proportional to 320,828,392.32, 480,413,779.50 and 221,424,763.07

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Solution

The fourth proportional to 320,828,392.32, 480,413,779.50 and 221,424,763.07 is: 331,565,129.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,828,392.32 : 480,413,779.50 = 221,424,763.07 : x
  2. Step 2: Convert to fraction form
    320,828,392.32/480,413,779.50 = 221,424,763.07/x
  3. Step 3: Cross multiply
    320,828,392.32x = 480,413,779.50 × 221,424,763.07
  4. Step 4: Simplify right side
    320,828,392.32x = 106,375,507,301,350,720
  5. Step 5: Solve for x
    x = 106,375,507,301,350,720/320,828,392.32
  6. Step 6: Final answer
    x = 331,565,129.05

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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.