Home / 542,516,967.63-812,751,418.65-320,525,919

Finding the Fourth Proportional to 542,516,967.63, 812,751,418.65 and 320,525,919

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Solution

The fourth proportional to 542,516,967.63, 812,751,418.65 and 320,525,919 is: 480,183,866.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,516,967.63 : 812,751,418.65 = 320,525,919 : x
  2. Step 2: Convert to fraction form
    542,516,967.63/812,751,418.65 = 320,525,919/x
  3. Step 3: Cross multiply
    542,516,967.63x = 812,751,418.65 × 320,525,919
  4. Step 4: Simplify right side
    542,516,967.63x = 260,507,895,381,344,992
  5. Step 5: Solve for x
    x = 260,507,895,381,344,992/542,516,967.63
  6. Step 6: Final answer
    x = 480,183,866.91

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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.