Home / 520,021,508.60-780,032,262.90-174,860,420.60

Finding the Fourth Proportional to 520,021,508.60, 780,032,262.90 and 174,860,420.60

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Solution

The fourth proportional to 520,021,508.60, 780,032,262.90 and 174,860,420.60 is: 262,290,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,021,508.60 : 780,032,262.90 = 174,860,420.60 : x
  2. Step 2: Convert to fraction form
    520,021,508.60/780,032,262.90 = 174,860,420.60/x
  3. Step 3: Cross multiply
    520,021,508.60x = 780,032,262.90 × 174,860,420.60
  4. Step 4: Simplify right side
    520,021,508.60x = 136,396,769,572,263,760
  5. Step 5: Solve for x
    x = 136,396,769,572,263,760/520,021,508.60
  6. Step 6: Final answer
    x = 262,290,630.90

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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.