Home / 155,239,821,000.80-232,859,731,501.20-128,740,259,553.20

Finding the Fourth Proportional to 155,239,821,000.80, 232,859,731,501.20 and 128,740,259,553.20

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Solution

The fourth proportional to 155,239,821,000.80, 232,859,731,501.20 and 128,740,259,553.20 is: 193,110,389,329.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,239,821,000.80 : 232,859,731,501.20 = 128,740,259,553.20 : x
  2. Step 2: Convert to fraction form
    155,239,821,000.80/232,859,731,501.20 = 128,740,259,553.20/x
  3. Step 3: Cross multiply
    155,239,821,000.80x = 232,859,731,501.20 × 128,740,259,553.20
  4. Step 4: Simplify right side
    155,239,821,000.80x = 29,978,422,272,952,950,063,104
  5. Step 5: Solve for x
    x = 29,978,422,272,952,950,063,104/155,239,821,000.80
  6. Step 6: Final answer
    x = 193,110,389,329.80

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1.5x scale

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.