Home / 628,172,909.80-942,361,667.12-185,560,501.48

Finding the Fourth Proportional to 628,172,909.80, 942,361,667.12 and 185,560,501.48

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Solution

The fourth proportional to 628,172,909.80, 942,361,667.12 and 185,560,501.48 is: 278,370,972.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,172,909.80 : 942,361,667.12 = 185,560,501.48 : x
  2. Step 2: Convert to fraction form
    628,172,909.80/942,361,667.12 = 185,560,501.48/x
  3. Step 3: Cross multiply
    628,172,909.80x = 942,361,667.12 × 185,560,501.48
  4. Step 4: Simplify right side
    628,172,909.80x = 174,865,103,526,316,032
  5. Step 5: Solve for x
    x = 174,865,103,526,316,032/628,172,909.80
  6. Step 6: Final answer
    x = 278,370,972.07

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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.