Home / 328,968,278.08-492,933,300-121,421,023.36

Finding the Fourth Proportional to 328,968,278.08, 492,933,300 and 121,421,023.36

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Solution

The fourth proportional to 328,968,278.08, 492,933,300 and 121,421,023.36 is: 181,939,930.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,968,278.08 : 492,933,300 = 121,421,023.36 : x
  2. Step 2: Convert to fraction form
    328,968,278.08/492,933,300 = 121,421,023.36/x
  3. Step 3: Cross multiply
    328,968,278.08x = 492,933,300 × 121,421,023.36
  4. Step 4: Simplify right side
    328,968,278.08x = 59,852,465,734,221,888
  5. Step 5: Solve for x
    x = 59,852,465,734,221,888/328,968,278.08
  6. Step 6: Final answer
    x = 181,939,930.75

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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.