Home / 128,781,046.21-193,054,666.65-46,841,996.60

Finding the Fourth Proportional to 128,781,046.21, 193,054,666.65 and 46,841,996.60

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Solution

The fourth proportional to 128,781,046.21, 193,054,666.65 and 46,841,996.60 is: 70,220,473.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,781,046.21 : 193,054,666.65 = 46,841,996.60 : x
  2. Step 2: Convert to fraction form
    128,781,046.21/193,054,666.65 = 46,841,996.60/x
  3. Step 3: Cross multiply
    128,781,046.21x = 193,054,666.65 × 46,841,996.60
  4. Step 4: Simplify right side
    128,781,046.21x = 9,043,066,039,502,390
  5. Step 5: Solve for x
    x = 9,043,066,039,502,390/128,781,046.21
  6. Step 6: Final answer
    x = 70,220,473.48

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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.