Home / 1,211,192,652.72-1,671,756,849.60-788,858,732

Finding the Fourth Proportional to 1,211,192,652.72, 1,671,756,849.60 and 788,858,732

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Solution

The fourth proportional to 1,211,192,652.72, 1,671,756,849.60 and 788,858,732 is: 1,088,827,599.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,192,652.72 : 1,671,756,849.60 = 788,858,732 : x
  2. Step 2: Convert to fraction form
    1,211,192,652.72/1,671,756,849.60 = 788,858,732/x
  3. Step 3: Cross multiply
    1,211,192,652.72x = 1,671,756,849.60 × 788,858,732
  4. Step 4: Simplify right side
    1,211,192,652.72x = 1,318,779,988,587,770,624
  5. Step 5: Solve for x
    x = 1,318,779,988,587,770,624/1,211,192,652.72
  6. Step 6: Final answer
    x = 1,088,827,599.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.