Home / 769,669,535.15-1,154,387,652.40-209,475,017.89

Finding the Fourth Proportional to 769,669,535.15, 1,154,387,652.40 and 209,475,017.89

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Solution

The fourth proportional to 769,669,535.15, 1,154,387,652.40 and 209,475,017.89 is: 314,180,779.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,669,535.15 : 1,154,387,652.40 = 209,475,017.89 : x
  2. Step 2: Convert to fraction form
    769,669,535.15/1,154,387,652.40 = 209,475,017.89/x
  3. Step 3: Cross multiply
    769,669,535.15x = 1,154,387,652.40 × 209,475,017.89
  4. Step 4: Simplify right side
    769,669,535.15x = 241,815,374,138,485,120
  5. Step 5: Solve for x
    x = 241,815,374,138,485,120/769,669,535.15
  6. Step 6: Final answer
    x = 314,180,779.02

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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.