Home / 509,408,999.10-764,113,498.65-218,226,570.30

Finding the Fourth Proportional to 509,408,999.10, 764,113,498.65 and 218,226,570.30

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Solution

The fourth proportional to 509,408,999.10, 764,113,498.65 and 218,226,570.30 is: 327,339,855.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,408,999.10 : 764,113,498.65 = 218,226,570.30 : x
  2. Step 2: Convert to fraction form
    509,408,999.10/764,113,498.65 = 218,226,570.30/x
  3. Step 3: Cross multiply
    509,408,999.10x = 764,113,498.65 × 218,226,570.30
  4. Step 4: Simplify right side
    509,408,999.10x = 166,749,868,130,323,200
  5. Step 5: Solve for x
    x = 166,749,868,130,323,200/509,408,999.10
  6. Step 6: Final answer
    x = 327,339,855.45

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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.