Home / 620,135,999.40-930,203,999.10-533,971,698.60

Finding the Fourth Proportional to 620,135,999.40, 930,203,999.10 and 533,971,698.60

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Solution

The fourth proportional to 620,135,999.40, 930,203,999.10 and 533,971,698.60 is: 800,957,547.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,135,999.40 : 930,203,999.10 = 533,971,698.60 : x
  2. Step 2: Convert to fraction form
    620,135,999.40/930,203,999.10 = 533,971,698.60/x
  3. Step 3: Cross multiply
    620,135,999.40x = 930,203,999.10 × 533,971,698.60
  4. Step 4: Simplify right side
    620,135,999.40x = 496,702,609,443,939,904
  5. Step 5: Solve for x
    x = 496,702,609,443,939,904/620,135,999.40
  6. Step 6: Final answer
    x = 800,957,547.90

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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.